Three months into a work assignment away from my wife and child, I meet my married neighbor An and fall for her at first sight. Guilt toward my wife cannot keep her out of my thoughts. One sweltering day, I lose my key, and An finds me drenched in sweat and offers me a shower. I accept her kindness and stay the night. Seeing a woman who usually wears long skirts lounging in revealing sleepwear, with her cleavage and bare legs exposed, finally shatters my self-control.