An American army officer working for British intelligence comes to post-war Berlin to solve a murder. His investigation is compromised when he falls for a nightclub singer, not realising she is an agent of the criminal mastermind he is on the trail of.

A showbiz reporter gets involved with political intrigue.

12 American military prisoners in World War II are ordered to infiltrate a well-guarded enemy château and kill the Nazi officers vacationing there. The soldiers, most of whom are facing death sentences for a variety of violent crimes, agree to the mission and the possible commuting of their sentences.

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.