Overview
A magician and his assistant are doing a trick on the stage. Suddenly the lights go out. When they go on again, a man, Carrington, is found murdered in the audience. Other characters in the play pop out of the audience: doctors and policemen. Carrington turns out to be an unsavory character and head of a narcotic ring. Suspicion falls on the magician, his assistant and others. Theatrical devices abound. House lights go on and off and at last the guilty scoundrel is discovered in the audience.