Last Seen Episode 3 Ending Explained: What the Cosmetics Bag Reveals About Donnie

The cosmetics bag reveals that Donnie’s lies are tied to the house where Sarah is being controlled, not simply to a misunderstanding about a van. Ian finds the inexpensive makeup after luring Donnie away, and the object matters because Henry had earlier rejected it as unsuitable for Sarah. That makes the bag a small but pointed piece of evidence....