New York private detective Hamberger used a food shop as his office. Rich Wall Street industrialist Alex Burton hired Hamberger to kill his wife with a generous offer. However, Hamberger took the down payment but warned Sharon Burton to leave. Despite that, Sharon was still killed, making Hamberger a suspect. During the investigation, Hamberger realized that this was a setup and made a deal with the detective to prove his innocence within 48 hours.