Noah discovers a torn hole at the crotch of his wife Ava's cycling shorts. She blames bike seat friction, but Noah knows the padding there is far too thick to wear through. Suspicion deepens as he notices finger-shaped bruises on her thighs, late-night homecomings, men's cologne on her jacket, and wiped chat logs. Yet, Ava smoothly explains away every anomaly and even invites Noah to a club camping trip to "prove her innocence."
Noah secretly investigates, uncovering overly intimate physical contact between Ava and her cycling coach, Cole, as well as forum leaks alleging Cole specifically targets married women. Despite these red flags, Ava expertly parries every clue. To eliminate Noah's doubts once and for all, she signs them up for an off-grid, three-day canyon expedition with zero cell service.
On the final night in the canyon, believing Noah is sound asleep, Ava sneaks into Cole's red tent. Noah follows and rips open the tent flap, catching them naked together. Outraged, Noah knocks Cole down, films Ava's
