Devil's Breath

Danny and Maria investigate the strange case of a man found outside a hotel covered in blood, which turns out to be the blood from his murdered girlfriend. The man has no recollection of the events from the previous night, and his blood work confirms that he was under the influence of a drug called "devil's breath." Concurrently, an off-duty police officer who had just left a retirement party thwarts an armed robbery-in-progress without any shots being fired. When Jamie smells alcohol on the officer's breath, he tries to help the man cover up the fact that he'd been drinking, but the two are caught by Jamie's C.O. Meanwhile, Nicky faces suspension from school when she is found to be organizing a protest against random locker searches, and Erin intervenes.