A girl is found dead in a vineyard and the team goes to investigate the restaurant where she worked, whose owners are Malcolm and Sandra Boatwright. The team heads to the Shand Creek Winery and McAllister points out Melanie's car in the parking lot. Teresa asks Cho to take it for examination and then joins Patrick sitting at a table with Malcolm and Sandra Boatwright, the owners of the restaurant. Teresa begins questioning them, while Patrick samples the food Malcolm has prepared for them. Patrick mentions that one of the dishes has a lot of butter and Malcolm laughs. He explains to Patrick that he looks at food as indulgence and necessity rolled into one. The Boatwrights escort Teresa and Patrick into the restaurant through the kitchen, and Patrick observes a chef accidentally burning himself while cooking at the range. Malcolm stops to scold the chef, and Sandra leads them to the office where she shows them Melanie's timecard. It shows that Melanie punched out and left at 11:25 pm.
The team searches Melanie's locker at work and finds a hand-written note that says "sorry". Patrick borrows the note, and all the restaurant employees are gathered for a meeting. Patrick announces to everyone that the note was found in Melanie's locker and whoever wrote it was the killer. He goes on to say that Cho was a handwriting expert and that everyone needed to submit samples for examination. Patrick then says that when Cho determines who wrote the note, they will have also caught the killer. Randall, the cook that burned himself in the kitchen, faints.
Patrick goes to a motel and is shown the room in question by the manager. He is told that the man wore a disguise when checking in and paid cash. Patrick makes a comment about the maid not cleaning the room and learns that the maid only cleans every three days for monthly rentals. Patrick quickly searches all of the cabinets and finds one that has some gloves, a bottle of bleach and plastic sheeting. The manager says that the items are not the motel's property. Patrick realizes that the killer will be coming back to the motel room.
Patrick returns to the sheriff's department to find Teresa smiling at a desk. She informs him that quite a bit of Melanie's blood was found in Hector's truck. They question Hector again and he tells them that Melanie got out of line at one point and he gave her a bloody nose. After questioning Hector, Patrick tells Teresa that he needed to show her what he's found. He takes her to the motel room and turns on the TV. A live video feed from a camera hidden in Van Pelt's corsage appears and shows her putting make-up on in the bathroom of the Shand Creek Restaurant. Van Pelt goes outside to meet Rigsby at one of the tables. Patrick explains to Teresa that the killer plans to bring his next victim back to the room and that they'll catch him when he returns. He goes on to say that the killer is so close to obtaining what he desires, that if given the opportunity, he would not be able to stop himself. That's why Van Pelt and Rigsby are at the restaurant. They pretend to have an argument in front of the entire restaurant, and Rigsby storms off leaving Van Pelt by herself. She leaves the restaurant and begins walking alone on the side of the road. She runs into McAllister who tells her it's not safe and offers to give her a ride. When Van Pelt refuses, he becomes insistent that she go with him and Rigsby races over from the surveillance van and knocks McAllister to the ground. Patrick and Teresa sit in the room watching the video as Patrick's plan unravels.
Patrick tells Teresa he suspects Malcolm because he uses too much butter in his cooking. Patrick said that it shows Malcolm is a glutton and is self-indulgent. Basically, he wants what he wants and takes it. Teresa doesn't believe his theory and leaves to smooth things over between McAllister and her team. As she gets in her car to leave, she receives a phone call and is not paying attention when the Shand Creek Winery van pulls into the parking lot. Patrick is still in the room when Malcolm and Sandra carry in a girl bound with duct tape. They grab the plastic sheeting from the cabinet and begin to cover the bed. They finally notice Patrick in the room. Malcolm is armed with a knife and Sandra pulls out a gun. Patrick is cornered and tries to talk his way out of the situation, causing Malcolm and Sandra to argue with each other. Teresa kicks in the door, shoots Malcolm in the chest and then turns to shoot Sandra as she points her gun at her. Teresa unties the girl and looks at a very shaken Patrick.