Arunrada blackmails Pathiharn, a man she just met, for 500,000 baht to help her sister. Aware of her plan, he makes a counteroffer: pretend to be the mother of his son, whose real mother, Pimrada, has been missing for five years. As Arunrada plays the role, she and Pathiharn grow close—but everything changes when Pimrada suddenly returns.