What is meant to be a pleasure cruise becomes a nightmare as murder follows murder on a small ship. With tension mounting, passengers and the crew turn on each other in a desperate attempt to identify the killer.

在东哈莱姆区，一位专门的音乐教师指导一群贫困儿童学习小提琴的艺术。在片子的高潮中，他们和一些世界上最重要的小提琴手卡内基音乐厅一起演奏。