Law & Order: Special Victims Unit
S05E09 Control
A subway passenger is discovered severely injured and castrated, prompting detectives to investigate further. They uncover that this so-called "victim" might actually be the man responsible for kidnapping women and holding them captive in his dungeon for years, treating them as his brides. Just as the detectives gear up to apprehend him, Benson arrives on the scene only to find the suspect has been killed.