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.