Young-won and Sa-kang shift Ji-eun to Honghak Hospital, which is just a stone's throw from their vacation home. Together, they brainstorm every conceivable scenario of what could've befallen Ji-eun and Jae-jin. While Young-won harbours suspicions about her mother-in-law due to the odd occurrences of late, she deems it crucial to join forces with her to locate Jae-jin first.