Detective Cameron Ace is desperate to solve the mystery of a missing cereal prize after his partner Alexander Flake is found dead in their office one morning. With several possible suspects on the list, including his partner's wife Eva and Veronica, a woman seeking the Fruity Falcon's prize. He'll have to solve the case before he loses his breakfast…forever.

Joel Cairo and Wilmer Cook have come too far to be ended by a snooping American detective. They end up finding an ally in Spade's secretary, Effie Perine. (Tags: Peter Lorre, Lee Patrick, Elisha Cook Jr., Humphrey Bogart.)