The Slough House Files spy duckTHE SLOUGH HOUSE FILES

Slow Horses · Series 5 · Episode 1

Bad Dates

A mass shooting and Roddy’s unexpectedly successful date set two threats in motion. “Bad Dates” brings Roddy Ho out from behind his monitor, while Shirley watches for a threat her colleagues are reluctant to take seriously. The question is not simply whether she is right. It is whether anyone can recognise good judgement when it comes from somebody visibly struggling.

Louisa’s farewell gives the premiere a second kind of departure to consider. Escape from Slough House can mean choosing to stop rather than persuading the Park to take you back. River has trouble accepting that difference, and his response makes an already uncomfortable evening worse.

Released
24 September 2025
Runtime
45 minutes
Source novel
London Rules
Director
Saul Metzstein

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Watch and read

Open the official programme page or explore the source novel.

Detailed plot

Reveal episode spoilers

Rob Trew walks out into the Abbotsfield Estate with a weapon hidden in his bag. A man campaigning for Mayor Zafar Jaffrey approaches him, offering the ordinary conversation of an election campaign. Trew answers by firing on the people around him. Before the attack can settle into the familiar explanation of a gunman acting alone, a sniper shoots Trew from above. The killer who supplied the opportunity has also removed the person who could explain it.

Emma Flyte reaches a crime scene whose first explanation is already inadequate. Trew’s death cannot simply be filed beside his victims as a suicide. His online activity suggests somebody has encouraged his violent resentment, while the gun and the separate shot point to an organiser with resources. At the Park, Taverner treats those connections as an intelligence problem. Whelan must warn the mayoral candidates, placing their rival campaigns alongside a crisis neither can keep out of politics.

At Slough House, Roddy is moving through his morning with headphones and extravagant confidence when a white van nearly hits him. Shirley pulls him clear. She regards the manoeuvre as deliberate, but the office sees another incident in her increasingly anxious response to danger. Marcus’s death has left her alert to another attack, and she wants protection her boss will not provide. Saving Roddy does not automatically earn belief; her state of mind becomes the reason for dismissing her account.

The office also has a leaving party to endure. Louisa is taking leave, and River initially understands it as a temporary absence. When the two talk away from the others, she makes clear that returning is not part of her plan. River attempts to turn their closeness into a kiss. It is a painful misreading: she is explaining the life she wants to leave, while he reaches for something that might keep her connected to his. Their friendship offers no easy way to repair the moment.

Shirley follows Roddy after work and discovers him meeting Tara for a nightclub date. Catherine follows Shirley, then calls for help. River arrives, but his presence does not calm matters. Shirley jumps down to confront a man whose bottle she has mistaken for a weapon. In the toilets, River challenges her cocaine use and the grief driving her behaviour. The argument exposes wounds neither can manage for the other. Roddy, meanwhile, leaves with Tara, unaware that he remains under scrutiny.

Tara ends the evening without going home with him. From the taxi, she sends a message announcing that Roddy is on his own. The audience now has evidence Shirley never managed to produce for her colleagues. Her alarm was tangled up with trauma, but the danger was real. The episode closes with Roddy mistaking the most vulnerable position of his life for another success.

Turning points

Reveal turning points

The sniper’s shot changes the meaning of the opening attack. The first perpetrator is also somebody else’s disposable instrument. That distinction matters because a motive attached to one angry man will not account for the people controlling what happens around him. The investigation begins by correcting its own simplest story.

Shirley’s rescue is the premiere’s emotional trap. Her colleagues have reasons to worry about her, but concern becomes a shortcut for deciding she cannot be trusted. The episode lets the audience see how easily those positions slide together. A person can need help and still have noticed something important; Slough House’s habit of treating both things as mutually exclusive leaves Roddy exposed.

Louisa’s decision interrupts the usual promise of redemption. A better posting would not necessarily restore what this work has cost her. River’s clumsy attempt at intimacy turns his fear of losing a colleague into another demand on her. The scene is awkward because neither a joke nor a successful operation can solve it. Her refusal to return has a clarity he has not yet found for himself.

Book vs show

Reveal book and television spoilers

The novel opens with five killers arriving in a jeep; television begins with Trew’s shooting and a separate sniper. Roddy’s Pokémon hunt becomes a dance through the estate. The attacking silver Honda becomes a white van. Louisa’s opening library research gives way to her departure.

Mick Herron, London Rules (2018), publisher excerpt, pp. 3, 10–11, 14–15 and 18–19.

Characters and actors

Christopher Chung plays Roddy’s confidence as something performed for an imaginary audience. Shirley sees a danger he will not acknowledge, while Catherine notices the danger Shirley herself is in. Those different kinds of attention give their pursuit more weight than the joke of Roddy finding a girlfriend. Louisa and River’s quieter scene makes the office’s damage visible without a gun or an interrogation room.

Linked locations

Reported: Abbotsfield’s opening estate scenes were filmed at Bush Fair in Harlow. Londonist also identifies the Golden Lane Estate and Fann Street for Roddy’s dance and near collision, and Middlesex Street for his journey home. Slough House remains the workplace connecting the two stories. The linked guides distinguish the fictional London setting from the streets used to create it.

Slough House – Aldersgate Street

Petticoat Lane: Slow Horses filming location

Bush Fair: Abbotsfield in Slow Horses

Golden Lane Estate and Fann Street

Trivia

Will Smith told TheWrap that a shot of Shirley noticing blood mixed with tinsel near the place Marcus died was filmed and cut. Her grief therefore reached the finished episode through performance and behaviour rather than that additional visual reminder.

Questions and answers

Why does Shirley think Roddy is being targeted?

She sees the van move towards him and intervenes. The message Tara sends after their date supplies the audience with further evidence that his private life is connected to a threat.

Does Louisa intend to come back after her leave?

She tells River she is planning to leave the Service. His assumption that her absence will be temporary is part of what makes their farewell painful.

Was Trew acting entirely alone?

No. Another person shoots him after the massacre, and Flyte’s investigation finds signs that somebody encouraged and equipped him.

Sources and credits