Mystery writer Richard Castle teamed up with NYPD Detective Kate Beckett to help her solve a series of murders that were seemingly based on his novels. Taken with the adventure, Castle used his contact with the Mayor for a longer relationship with the NYPD, shadowing Beckett on the job and using her as the inspiration for a new series of detective novels. The professional relationship becomes personal as they work together to solve more homicides. Episodes of Castle air weekends on TV5. Check our online local program schedule for specific day and time.