Vanessa, a beautiful CEO, and Ethan, a maintenance worker, get trapped in a deadly couple’s escape game inside a locked chamber. Once superior and subordinate, they are now forced to cooperate to survive extreme challenges, including lie detector tests, heartbeat synchronization, and trust bridge trials. As cold machinery and lethal traps close in, their class divide and hatred fade amid life-or-death reliance. They shift from clashing fiercely to working in perfect sync, from forced closeness to genuine affection, with their feelings growing amid intense tension. In the end, Ethan is ready to sacrifice himself to save Vanessa, yet she abandons escape to go back for him. The mastermind, her fiancé Julian, has his plot exposed. The two fight back side by side and find one another on the brink of death. It is an ultimate trial of trust, sacrifice and love.
