SolarmovieOne

Watch How to Save a Marriage and Ruin Your Life online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.

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, thinking it to be a marriage proposal.