Mio is on a two-night, three-day trip to a seaside beach with her husband. On the first day, she stops by a convenience store near the beach, changes into a trendy bikini in the attached changing room, and heads into the store to buy vacation essentials—only to find unexpected danger waiting for her. The changing room has hidden cameras installed, and she can't tell where the employees are watching from. Leaving her husband at the hotel, Mio returns to the convenience store, where she's suddenly assaulted by a man and molested inside the store. Afterwards, she's called into the employee office, dragging her into even deeper trouble.