Terror Aboard (1933)

Stars:

John Halliday, Charles Ruggles, Shirley Grey

In this suspenseful mystery, a murderous psychopath aboard a luxury liner begins a series of grisly but creative murders. One victim is found in a refrigerator, one is poisoned. Still others are shot and stabbed. In the end, he dumps a lifeboat filled with sailors into the sea where they drown.