A woman secretly using a delivery health service to pay off debts without her husband's knowledge. Due to the economic downturn, her income drops and financial pressure mounts, forcing her to turn to her brother-in-law, who lives with her. He is financially stable and suggests she become a paid girlfriend, but hesitates because she is married to his younger brother. She relentlessly seduces and tempts him with one tactic after another, eventually breaking down his resistance. Though initially driven by money, their physical intimacy dismantles his emotional barriers, causing him to abandon all rationality. This dramatic story explores financial hardship, complex family dynamics, and the fragility of human relationships.