Blue Moon — Peter Duchin

Bandleader Philip Damon still hasn't recovered from the death of his wife-victim of a still-unsolved murder-when he arrives at a charity ball at San Francisco's Fairmont Hotel. So, understandably, he's quite shaken to meet Lenore Ashley there, as she uncannily resembles his late wife. But the belle of the ball becomes a suspect when her companion is found dead with an ice pick in his heart. Now, Philip must solve two murders-and discover why he is the one link between them.