A working girl accidentally incurs a massive debt. She crosses paths with a con man. Amidst lies and deceit, they navigate a tumultuous journey, questioning their paths in life.

Lin Qinglang (played by Jin Chen), a working girl, turns a sweet vow into a huge debt of 201,314 yuan overnight. How can she face the long road of repaying the debt with a smile? Can Ouyang Hui (played by Sun Yang), a master of fraud and a man with countless criminal records, change his life path just because he meets her? A "liar couple", a "love cheating game", where will it end.