After several of Bailey's patients die, she becomes the focus of a CDC investigation; Cristina teases Alex about his feelings for Jo; Owen continues to take care of Ethan while his parents remain in the hospital.
A man's body is found in a bathtub, and the investigation reveals that not only was he strangled to death, but he was also a millionaire.
The investigation into the death of a woman's husband reveals that the deceased man was living a double life.
After Jane saves a wrongfully accused man from certain death, the team resume the hunt for the real killer.
Castle is captured and forced to work with strangers to solve deranged puzzles and mind games, while Beckett and the 12th precinct must race against time to rescue Castle and catch a killer.
