The search for refers to the fourth episode of the psychological thriller series Coldwater , which premiered on ITV1 and ITVX on September 14, 2025 . Starring Andrew Lincoln as John and Ewen Bremner as Tommy, the series follows a man who moves his family to a remote Scottish village, only to become entangled with a dangerous neighbour. Episode 4 Synopsis & Plot Details

Fiona, already suspicious of John's behavior, asks for space as the weight of his admission and his strange friendship with Tommy becomes unbearable.

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