When Chanasak, the president of Mekha Company, goes on a business trip, his assistant Linthida must take care of the company in his place. But she is bullied and has important contracts sabotaged by Samruedi, an intern who lies about being pregnant with President Chanasak's child and uses her status as the 'president's wife' to oppress her. When Chanasak returns, he plans to expose her and discovers that she is actually the lover of his infertile adoptive younger brother. Samruedi refuses to give up and tries to attack with a knife but fails, and is ultimately prosecuted. In the end, Chanasak and Linthida find love together.