Plunge Into Darkness

An ex-pro athlete runner and his wife find a strange boy in the middle of nowhere along with a murdered couple. He runs to a nearby town for help while she keeps the boy company. Meanwhile, escaped convicts are heading to their location.

Is There Anybody There?

A beautiful woman, Kate (Tina Grenville), is released from a sanatorium unaware that while she was away her husband John (George Lazenby) has begun an affair with her sister Marianne (Wendy Hughes). The two sisters live together in a creepy apartment block while John is away, and find themselves stalked by some mysterious strangers.

Serena

Scotland Yard investigate when a woman, apparently the estranged wife of a London painter, is murdered with a shotgun in rural Surrey at the same time as the artist's striking model with her long black hair disappears.