A bestselling mystery writer partners with a tough NYPD detective, solving murders with humor, chemistry, and evolving relationships, while tackling personal growth and intricate cases.

Rick Castle is one of the world's most successful crime authors. But when his rock star lifestyle isn't enough, this bad boy goes looking for new trouble - and finds it working with smart, beautiful Detective Kate Beckett. Inspired by her professional record and intrigued by her buttoned-up personality, Castle's found the model for his bold new character - whether she likes it or not.

Now with the mayor's permission, Castle's on her case and in her way. Kate's initial disdain for Castle turns to grudging respect as he quickly proves that a background in plotting murders can be a valuable asset in catching killers. As they solve a new crime together each week, they're partnership grows - as does their love-hate relationship. These two may not always see eye to eye, but together they might just write a whole new chapter in crime solving.