International crooks Sylvia, Roy and 'Count Donelli' come to America and cooperate to rob wealthy homes by using a gimmick known as a chess-playing machine. Sylvia and Roy soon learn the truth about not only themselves but also their partner-in-crime.
| Actor | Role |
|---|---|
 Priscilla DeanSylvia Donovan | Sylvia Donovan |
 Matt MooreDick Longworth | Dick Longworth |
 Raymond GriffithRoy Donovan | Roy Donovan |
 Wallace BeeryCount Donelli / Hawkes | Count Donelli / Hawkes |
 Alfred AllenMike Donovan | Mike Donovan |
 Emmett KingBishop Vail, a chessplayer | Bishop Vail, a chessplayer |
 Lillian LangdonParty Hostess | Party Hostess |
 Eric MayneParty Host | Party Host |