Mickey Spillane's Mike Hammer (1958)

Mere Maid (1x39)

:

A pretty secretary swims across the lake to the cabin Mike has rented for vacation and invites him to a party at her uncle's estate. The party soon loses its appeal when Mike bumps into an old adversary, a lawyer who claims Mike railroaded his client by faking evidence. When the lawyer is accused of murdering his host, Mike shows the value of a fake identification to smoke out the real killer.