Five years into her marriage, housewife Mihana lives a quiet life in a rental apartment. However, she's grown increasingly frustrated with her upstairs neighbor, a host-like man with terrible manners. His loud phone calls in shared spaces and inconsistent garbage disposal schedule have caused mounting stress due to his complete lack of consideration. One day, reaching her breaking point, Mihana confronts him by visiting his apartment—but she's met with an even more aggressive and intimidating man than she expected...!