The team performs an autopsy on Kevin. Sid finds food in his abdomen. He tells Stella that Kevin ate a dinner roll. They wonder how the DNA found at the crime scene matches an unknown female.

Danny goes through physical therapy to try to walk. His trainer, Joyce, tells him not to quit. He collapses and says that he is done. Sheldon arrives to pick him up. He tells him that he isn't pushing himself hard enough. Sheldon says that he knows a lot of people who fought and walked again. He orders him to fight through the pain and try harder.

Danny arrives at the lab and meets with Lindsey. She wonders how eight years of marriage ended up in 17 stabbings. Danny thinks love caused her to be so angry.

Haylen tells Stella that she didn't find any clues that shows another person in the room. She says that she examined the food and saw that salad and the rest of the food was never served. They wonder how Kevin was stuffed with food. Later, Mac figures that Kevin was having an affair with a woman nearby where he had the same meal that Debra prepared. They wonder if Kevin kissed the woman then transferred the DNA to the dinner roll.

Sheldon arrives and reports that he learned the woman's DNA was found in several other murders and other crimes across seven states. Sheldon says that there was a murder recently where they found DNA on spent casings. They also found DNA at a club where there was a stabbing. Danny says that Kevin's jacket had pollen from a pansy. Stella has a hunch that the pansy is a wedding anniversary flower. Lindsey says that she found chemicals that are consistent to new carpet.

Mac meets with Chief Sinclair who asks for an update on the case before he has to give a press conference. Mac suggests he gives the press no comment. He says that the press will accuse them of a cover up and blame them for not warning anyone about the serial killer.