After being released from a mental institution for the mercy killing of his ailing wife, Stephen Neale visits a charity bazaar where he wins a cake by guessing its weight. The cake, however, contains microfilm sought after by Nazi spies, and Stephen soon finds himself a target. On the run and unsure of whom to trust, he enlists the help of a detective, a beautiful woman and a foreign inspector. © 1944 Universal Studios. All Rights Reserved.