When the postman rings twice

When the postman rings twice ( The Postman Always Rings Twice ) stands for:

• When the Postman Rings Twice (film) , based on the novel by Bob Rafelson (1981)
• When the Postman Rings Twice (novel) , American detective novel by James M. Cain (1934)

This is a disambiguation page for differentiating between several terms identified with the same word.