Season Premiere '48 Hours' with Erin Moriarty on Saturday Sept. 27, 2025

48 HOURS on CBS. The next episode is called, "The Boy Who Killed His Twin" that will air this Saturday at 10/9 p.m.

CBS says, "A teenager stabs his sister – a crime with no known motive. His defense says he was sleepwalking. Erin Moriarty reports."