Richard Todd plays an insufferable Scots soldier confined to a World War II military hospital. Ronald Reagan is an all-American patient who befriends the headstrong Scotsman, while Patricia Neal is the compassionate nurse. Gradually the patients grow begrudgingly fond of Todd, and when it is learned that he is suffering from a fatal illness, everyone involved tries to keep his true condition a secret from him. Todd inadvertently discovers the truth, and violently turns against his new buddies. But before the fade-out, friendship wins out over bitterness and self-pity. Filmed in England, Hasty Heart is based on the stage play by John Patrick.