Castle: Season 2 Episode 16: The Mistress Always Spanks Twice
Starring: Nathan Fillion, Stana Katic, Susan Sullivan, Monet Mazur, Ruben Santiago-Hudson, Devon Gummersall, Tom Schanley, Gil McKinney
Length: 60 minutes
Castle: S02E16 Description: A naked woman is found bound and hanging from monkey bars. Castle and Beckett look into the world of dominatrix.