Those Who Dance is not so much a film as a "class reunion" for several former silent-screen favorites. Monte Blue stars as Dan Hogan, a cop who poses as a Detroit gangster, the better to ferret out the murderer of his brother. He does this as much for himself as for his sweetheart Nora Brady (Lila Lee), whose own brother Tim (William Janney) has been accused of the crime. The real villain is Diamond Joe Jennings (William "Stage" Boyd), who is ultimately betrayed by his mistress Kitty (Betty Compson). The title, of course, is derived from the old proverb that ends "must pay the piper."
by Hal Erickson synopsis