When Death Comes Knocking

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. [also shown as S1:E6]

When Robert Penn is murdered, it appears a stranger is responsible. But a doorbell cam points to someone close to home.

When tech CEO Fahim Saleh is found dismembered in his Manhattan home, elevator 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 teen Ronan Kanda is stabbed to death, police discover his murder is a tragic case of mistaken identity.

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