
A team of investigators links CCTV, home surveillance, police body camera, and mobile phone footage that builds the evidence necessary to catch a killer.

In the U.S., a man desperately calls the police for help after he gets attacked; police work to crack the case using security footage and phone tracking; in the U.K., a dog lover is found murdered in her rural home.

Two women are killed, and all evidence suggests their husbands are involved with their untimely deaths.

A double murder case ends in a confession; CCTV exposes a jealous former partner.

A woman is last seen on CCTV with her husband; in Missouri, a road rage incident leads to tragedy.