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

A murder in a garage is recorded on camera in the US; a woman is found stabbed 54 times in the UK.

A sister tracks down her brother's killer; CCTV is the main witness to identifying the killer of a mother.

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.

A missing 15-year-old is found by cadaver dogs; a dismembered body in a suitcase must be identified.