你会恍然大悟 (1940)

Kay Kyser和他的乐队受雇于一位年轻的女继承人，在一栋令人毛骨悚然的老房子里为后者的生日宴会助兴，他们发现一起陷害女主人的图谋。

Kay Kyser and his orchestra are hired to entertain at the birthday party of a young heiress at a creepy old mansion, where they uncover a plot against her life. Who is the villain The sinister judge The phony medium The skeptical psychologist You'll find out.

至少三个全源