Larsen home. Mitch walks by the bathroom to find Denny playing in an overflowing tub. She has a flash of Rosie and flips out, ordering Denny to get out of the water immediately. These ripples are still coming fast and hard.

Richmond heads to his TV shoot, and Gwen introduces him to the (female) director. Richmond asks, "What happened to Mr. Hard-To-Get?" Gwen answers, "He had the wrong idea."

SPD lab. Rosie's tox screen was negative for all narcotics, but the ammonium hydroxide was all over her body -- even in her lungs. It's used for cleaning, both of the professional and homicidal type. The tech explains that's probably why they didn't find anything under her nails or any sign of sexual assault. Linden says it sounds like the perp is a pro, and the tech agrees.

Closing montage: Stan goes into his garage and tells Belko to follow up with the groundskeeper at the high school. He wants to know who the cops are pursuing. Holder lingers outside a house with children playing inside and finally drops his packet of cash into the mailbox. Linden tacks up shots from Rosie's Super 8 movie, just as she did with the drawing Rick mentioned earlier. Richmond films his TV spot with -- guess who -- Bennet Ahmed and the All-Stars.

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