Mia receives "Who is this?" from Adam’s phone but recognizes it as a family in-joke. She replies with their standard cue and gets an immediate "Mia?", feeling sudden relief that Adam himself is texting. The typing indicator disappears, her follow-up fails, and calls go to voicemail—she concludes his battery died mid-text.

Mia rushes to tell the family. Eugene grabs her phone, studies the screen in an unusual, fixed way, and seems to read the entire exchange, then panics, wailing and throwing the phone. Mom instinctively switches to Korean to comfort him, and Eugene collapses into her arms, momentarily soothed.

The landline rings: Detective Janus, but the connection is garbled and drops. John notices Adam’s locator dot update to the park parking lot with a nearly dead battery timestamped minutes earlier. Concluding Adam had been there when texting, Mia and John wordlessly decide to go and execute a practiced, rapid departure.

En route, Mia questions why Adam texted "Who is this?" if he knew her old contact name, and she worries about possible early-onset dementia, recalling Mom’s recent fixation on Alzheimer’s stories. A gray sedan briefly raises hope before revealing a student driver. They reach the park entrance, closing in on Adam’s last known location.