Criminal Minds

A guy gives a homeless girl a ride back to where he was staying. His wife tells the girl to come inside the motel to take a shower. Mya goes and the man strangled the girl after she came out of the shower. The couple is going to marriage counseling.
It's gross that killing turns them on. Kinda weird but hey people are weird.
JJ comes back to work and the team is surprised to see her.
The team finds out that it's a couple who is killing. They also find out that they have killed others. There next victim was a man that the wife picked out.
The team finds out that the woman went dormant and the man killed on his own. He raped and stabbed his victims. They found one of his victims that was still Alice. JJ talks to her and finds out that his name is Allen. The team show up at the house and arrest the woman.
The team finds out that Judith had a hysterectomy and that Allen had an STD. Alex tells Judith about her husband killing without her. The reason they split was because Allen cheated.
Allen find a out that his wife was taken. He goes to see their therapist.
Reid calls the therapist and finds out that Allen is there. He tries to rape and kill the therapist but the team shows up and arrests him. The wife find a out that the necklace her husband gave her was from a woman he raped and killed
Garcia and her boyfriend run into Morgan and his girlfriend so they have a double date.