The Moment of Proof

The Social Media Monster (2x12)

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A thief who prowls for victims on social media is locked up, thanks to the sheath of his knife. His online accounts contain evidence of the violent crime spree. Also, a plea for help scrawled on a £10 note puts two kidnappers behind bars. Detectives race to track down the victim while the offenders subject him to a torturous ordeal.