Plot Synopsis

When a mother of four is found murdered near her home in October 1975, DCS Dennis Hoban leads the investigation but is frustrated in his efforts to find her killer. After a succession of further murders, it dawns on the detectives that they are dealing with a serial killer. Bereft of serious leads, Hoban is quickly sidelined from the investigation by Chief Constable Ronald Gregory, who seeks to run the investigation his way. After subsequent murders, Gregory appoints Assistant Chief Constable George Oldfield to take over the inquiry. As time moves on, Oldfield is galvanized by the arrival of a series of letters and a tape, purportedly from the killer himself. But even with this seemingly concrete evidence the murders only continue, and the investigative squad become fatally entrenched in their belief that the killer means to target sex workers. Eventually the team decides to go public with a massive press appeal, hoping to flush out the sender and as a result, the killer. But with this acting as a distraction, the killer is able to strike again and again, sparking waves of protests among young women across the country to reclaim the streets. After a chance arrest, the killer is finally identified and caught. Through the eyes of his many victims -- the survivors, the mothers and fathers, and the many children -- the series reveals the emotional effects and shockwaves these crimes caused will last through the decades. Written by George Kay and directed by Lewis Arnold, THE LONG SHADOW made its U.S. debut on Thursday, March 21, 2024 on SundanceNow and AMC+, which released the first two episodes. A new installment dropped weekly on Thursdays through April 25.
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On Thursday, April 25, 2024, SundanceNow released the season finale of THE LONG SHADOW. After a chance arrest, the killer is finally caught.