If luck is a lady, she's certainly not private investigator Jade O'Reilly. When Jade is late to work, she's punished by being assigned what may be an unsolvable case: find a missing four-leaf-clover good-luck charm before the town's St. Patrick's Day Festival. With an Irish cooking competition deadline bearing down, Jade chases clover clues while searching for the owner of a troublesome black cat that visits Jade's apartment to torture her on a nightly basis. Jade also is determined to pinpoint where her brother is spending his mornings and evenings—because it's not at his house with his wife and son who claims that "Daddy's got a secret." It's lucky uncovering secrets is Jade's specialty, even if luck itself is not.