Betsy Beutler

A man is found castrated and left for dead in a hotel, prompting Rollins and Carisi to search for three female suspects with potential motives. Meanwhile, Benson receives crushing news from Langan.

McGarrett explores the trail of a human trafficking ring while Chin joins Grover to investigate a murder at a rehabilitation centre.

Dr Kelso's replacement as chief of medicine turns out to be just as callous. Eliott doesn't realise that the break-up continues to hurt Keith, while JD gives up on his interns when they disappoint him.

Mortal enemies Kelso and Cox are forced to team up together to oust Dr Maddox from Sacred Heart. Meanwhile, a selfish intern gets on Carla's bad side.

JD learns how hard it is to teach compassion to someone with no interest in learning. Elliot is the victim of intern Katie's scam to get on Turk's research project.

The new interns at Sacred Heart perform in Turk and JD's historically unfunny annual sketch show. Interns Sunny and Denise look after a young patient together.