With the return of her stalker, Mitzeee starts to lose her grip on reality and a night out with the girls descends into chaos as her paranoia reaches new heights. Riley is horrified when he realises the true extent of the situation, but when a faux-concerned Mercedes learns that her plan is working, she decides to pay Mitzeee a visit. Tensions heighten between the two women with horrifying consequences... Elsewhere, Nancy is nervous as she braces herself for the scan, and Callum's frustrations grow as he feels totally alone.