Wiretapper(1955)

The true-life drama of the man who kept the Gangsters, the Gamblers and the Bookies always one step ahead of the law - until the moment when he tapped in on a direct line to God!

A cash-strapped electrical engineer with a criminal past vows to go straight when he marries his longtime girlfriend, but he has second thoughts when the mob offers big money for his wiretapping services.