This Promo is for the next coming Episode. Episode 22, Season 7 (Perfidy in Blue). When Shirley loses Laverne's favorite purse, she is afraid to tell her because she didn't ask if she could borrow it. When Laverne asks Shirley if she knows where the purse is, she lies and says no. Shirley then goes to sleep and dreams that Laverne is trying to kill her because she knows that Shirley lost her favorite purse and lied to her about it. (thetvdb.com)