Can they work together to find the killer? Detective Cassandra Cavanaugh is in New York to assist in a cold case. A long-lost cousin's body has been unearthed, the possible victim of a serial killer. While NYPD Detective Danny Doyle resents her intrusion, his attraction to the feisty California cop is undeniable. But focused on the case, they're unaware they're being shadowed by the killer...