"A Dance with Death" - When Odette Morton, a contestant on the hit competition show "A Night of Dance," is found murdered in her dressing room, Castle and Beckett must navigate the case's many twists and twirls without stepping on each other's toes. But as they delve into Odette's past, they discover that this reality starlet was harboring a shocking secret that may have led to her death, on "Castle," MONDAY, MARCH 19 (10:01-11:00 p.m., ET), on the ABC Television Network.