Police: Suspect No.1: Season 2, Episode 3

2 - 3: Episode 3

Detectives investigate when a man is found in the early hours badly beaten at the side of the road with significant facial injuries and little recollection of what happened. DS Lee Marriner and DC Craig Weir start hunting through all the images from that night to see if they can pick up anyone who might have been with the victim, and several clips emerge but identification is a problem.