Dr. Dylan Reinhart, a gifted author, university professor and former CIA operative is lured back to his old life by tenacious top NYPD Detective Lizzie Needham. Though Dylan and Lizzie initially clash, when it comes to catching killers, they make an ideal team.
After being put on leave by the NYPD, Dylan Reinhart is reinstated in time to join detective Lizzie Needham on their newest case. Lizzie's boss, Lt. Jasmine Gooden, is relieved to reinstate Dylan but also lets him know that he now plays by her rules. But as Dylan feels reenergized returning to his work life, his husband, Andy, is busy fielding the adoption process in the hopes that they can finally become parents. With Dylan and Lizzie back as partners, a "Sleeping Beauty Killer" case comes their way, and they realize they need to continue to both trust their instincts.