During their morning hike, a tree falls near Mitch and Debs, nearly crushing them, which causes them to cut their journey short and return early to the cabin.

Mitch and Debs see Melanie and Josh mid-coitus through a window. Debs wants to confront them immediately, while Mitch is fearful of losing his wife and prefers to keep the secret between them.

Debs and Melanie have tense interactions, with Debs giving Melanie cold looks that make her uncomfortable, while Mitch struggles with his anger and even lashes out physically at Josh, but ultimately wants to keep the secret to avoid losing his wife.

The two couples--Mitch and Melanie, Debs and Josh--are forced to confront simmering feelings and secrets during their isolated cabin stay, leading to awkwardness, tension, and difficult conversations as they try to maintain appearances despite the infidelity.

The film examines not only the primary offense of cheating but also the underlying issues and emotions that led to it, showing nuanced interactions and shifting dynamics as the characters are forced to listen and confront difficult truths while trapped together in the cabin.