Irish immigrant Molly Murphy is contemplating giving up PI work for something a little less ... exciting. Molly has had quite enough excitement recently, thank you very much. Especially from the handsome but deceptive NYPD captain Daniel Sullivan. She wants him out of her life for good. But when Daniel is accused of accepting bribes and lands himself in the Tombs, the notorious city jail, he begs Molly to help prove he was framed. After everything they've been through together, how can she turn him down? As Molly finds herself drawn further into Daniel's case, Molly begins to fear that his trouble is related to one of his investigations: catching a serial killer who is targeting prostitutes, known to the locals as the East Side Ripper ...