Mission: Cross description:

A man leaving his past behind and living as a househusband is chased by his wife for his secret life. A hardworking househusband and a former special forces officer Kang Moo is hiding his past from his wife Mi Sun who is a violent crime detective. One day, a mysterious woman, Hee Joo appears to Kang Moo and Mi Sun assumes that his husband is having an affair. Mi Sun is after Kang Moo and Kang Moo is after something else. It eventually leads both of them to unexpected situations. Kang Moo can no longer be a peaceful househusband after all..