In this thriller, two gangs of jewel thieves battle it out in a deserted cottage. Murder ensues when the owners of the cabin show up.

A composer (Laurence Payne) is stuck in a middle-class marriage and finds that his affair with his wife's half-sister (Jane Griffiths) has resulted in a pregnancy. When his wife refuses to give him a divorce he hatches a murder scheme that is too clever by half.

A Roman Catholic priest defies a Mexican bandit whose gang kills villagers in alphabetical order.

A United Nations investigator crosses paths with a pair of psychic sisters on his way to Trollenberg observatory in the Swiss Alps, which has been plagued by a series of mountaineer disappearances that may be related to a radioactive cloud at the mountain's south face.