Patrick and the team solve another murder- nothing new there, but this time Patrick's habit of helping himself to making tea in the kitchen backfires bigtime! Tea laced with belladonna leaves causes Patrick to hallucinate images of his deceased daughter Charlotte- now a teenager. The hallucinations eventually assist in solving the crime, but also wear off, causing his glimpse of what could have been to end. In a heart-wrenching finish, we see Patrick up in his loft at the CBI alone with his signature teacup and a bag of what we assume is tainted tea so that he can attempt to attempt to hallucinate more time with Charlotte. Incredibly sad!!!