One dark night, a fearsome rainstorm chases four people to a mysterious motel: a sneering gangster (Noel Madison), an embezzling bank teller (Byron Foulger) and a hopeful couple (Wanda McKay, Bob Randall) who are trying to elope. Shortly after the raging storm wipes out the surrounding roads, the trapped tourists begin to suspect that each of them -- even snooty caretaker Amos Bradford (George Zucco) -- harbors a dark secret. Before long, these discoveries promise money and lead to murder.