John (William Windom) has stayed up working on a cartoon sketch called "The War Between Men and Women". His inspiration came from a cocktail party for fellow Manhattanite magazine writer Phil Jensen (game show panelist Henry Morgan) and his wife Ruth's (Olive Dunbar) 6th anniversary held at John's house. While there Phil couldn't finish a story without Ruth interrupting. They naturally argue and as other couples discuss it they take opposite sides. Ruth throws him out of the house and Phil broods at O'Malley's bar with John, fellow cartoonist and dramatic critic J.J. Howard (Ray Walston, Uncle Martin on "My Favorite Martian"), and their editor Hamilton Greeley (Harold J. Stone). In a satire of battle, the drunken men draw up an attack plan on the sidewalk outside Phil's house to throw him back in. Their secret plan is foiled by a volatile older neighbor referred to as "The Sniper" (dear, sweet Connie Sawyer who is still with us in February 2017 as the world's longest and oldest working actress at age 104). The two fronts meet at the Jensen's front door to talk it over, but the divide grows deeper. The war climaxes when credit cards are threatened.