When Death Comes Knocking - Episode Guide

When Maria Munoz dies from an overdose, it looks like suicide. That is until doorbell camera footage reveals a dark story of love, betrayal and murder..

When tech CEO Fahim Saleh is found dismembered in his Manhattan home, lift footage reveals his killer - and a shocking betrayal.

When NBA star Andre Emmett is gunned down outside his Dallas home, doorbell footage helps police trace the killer - the motive turns out to be pure greed.

When 16-year-old Ronan Kanda is killed with a ninja sword in Wolverhampton, CCTV and doorbell cameras uncover a chilling tale of teenage revenge and mistaken identity..

A teen calls 911 after his mother is attacked by a man with an axe. Her violent ex-partner is caught on doorbell cam carrying the weapon. Her family say the system failed her.

A police officer reports his wife has shot herself. But doorbell cam records a Sheriff's Deputy calling at the house earlier casting doubt on his testimony.

Jehovah's Witness Sharon Gordon was murdered by her builder in Dudley after ongoing tensions.

When Jamie Faith is murdered, detectives discover his wife manipulated a former boyfriend to kill.

When Nicki Collingbourne is murdered in Hertfordshire, the prime suspect is a man in a high-vis jacket.