Plot Summary:Laura Mansfield's father is killed, apparently by a telegraphic messenger. She spots Jackie Wales in a police lineup, but can't identify him positively. Later, she arranges to meet him, and is convinced he was the killer, but he was acting for someone else. She gets to know Jackie to find out who the boss is, taking a job in the Vogue Club, owned by a man named Armitage. Meanwhile, Alice, Armitage's greedy mistress, goes after Jackie and lures him into blackmailing the nightclub owner. Armitage discovers the betrayal, and kills the two, but Laura schemes to get closer so she can prove him guilty.
结构蛮好玩的，开头的谋杀引出人物关系上的一系列神展开，五个主要人物都有双重甚至三重身份，百忙之中处理得还算从容。用自动弹奏月光的钢琴作为暴力/死亡的信号是那种B级片小惊喜。