John Mercer attends the funeral of his colleague Andrew Dyson, suffers a severe panic attack triggered by memories of past cases, hallucinates several notorious criminals in the chapel, and ultimately leaves the service escorted by his wife Eileen and his colleague Pete.
Kevin Simpson discovers a demonic entity hiding in his attic that has been monitoring him; the entity descends, binding Kevin in a hot bathtub where a masked intruder confronts him with a hammer, keys, and lighter fluid.
The devil confirms Simpson’s death, secures the eight‑minute audio recording, and prepares to leave, planning to use the tape for a phone call.
Mark Nelson arrives late on his first day as a detective under John Mercer, signs in at reception, receives a police identification photograph, is shown a chaotic office space, receives a phone call from Eileen Mercer asking him to pass a “Don’t forget” message to her husband, and is then dispatched by Pete Dwyer to a suburban homicide scene to start door‑to‑door canvassing.
Eileen Mercer is visited unexpectedly by her client James Reardon, who apologizes and mentions his daughter Karli before fleeing the scene; Eileen is left outside in the rain, unsettled by his abrupt departure.
Mark Nelson starts his first day under John Mercer, arriving at a suburban homicide where the victim is identified as Kevin James Simpson, found burned and bound in a bathtub. The team discovers a mysterious spider‑web drawing on a wall. Mercer assigns Mark to door‑to‑door canvassing and relays his wife Eileen’s “Don’t forget” reminder.
Jodie executes her routine sandwich run, grapples with a strained relationship with Scott, discovers an abandoned crying baby on a desolate waste ground, and is suddenly assaulted by a masked aggressor wielding a spray bottle.
Mark joins his team for his first homicide assignment, canvasses Kevin Simpson’s street and gathers witness descriptions of a white van and a young woman leaving the victim’s house; the detectives then listen to harrowing audio recordings of Simpson’s torture, prompting Mercer to assign CCTV review, forensic analysis, a press briefing and to open case file A6267.
Scott continues his “500 Reasons” list for Jodie, struggles with creative block and marital tension, records reason 274 after a supportive text, and intersperses his day with an iterative self‑portrait painting series and a strenuous weight‑training session.
Jodie’s lunchtime sandwich run ends with the discovery of an abandoned crying baby on a desolate waste ground and a sudden masked assault using a spray bottle; Scott continues his “500 Reasons” list, coping with creative block and marital tension, records reason 274 after a supportive text, and intersperses his day with a self‑portrait painting series and an intense weight‑training session.