Battle-of-the-sexes comedy about a free-wheeling bachelor who decides to save his friend's marriage by proving that all mistresses are incapable of fidelity. The plot gets complicated when the bachelor offers to set up the wrong girl in a lavish love-nest and she accepts, believing that it's a marriage proposal.
How to Save a Marriage and Ruin Your Life
When a carefree bachelor tries to get his best friend to drop his mistress and return to his wife, he finds himself with romantic problems as well.