John Wall meets his new sweetheart and takes her to the movies; his neglected wife Anne follows them there. Molly, disobeying her parents, meets her boyfriend at the same theater. A working man with his wife and children, all obsessed with the sordidness of their lives, also attend the movie, as does a dishonorable young man. They watch a film called 'Life's Mirror' in which they see their own lives turned into dramas, complete with possible "final curtains.": Molly, who refuses to listen to her parents, sees her motion-picture surrogate give birth to an illegitimate child after she is abandoned by her boyfriend; Anne Wall, tired of the phoniness of John's wealthy family and friends, deserts him and their children to return to the slums and do charity work for the needy. After the movie, John, sadder but wiser, leaves his sweetheart and goes home with Anne, Molly decides to apologize to her parents, the working man's family realizes that they must look to the future, and the young man promises to lead a more responsible life.