赤色Carmen learns that her daughter Maria died in an accident. After a couple of days, she decides to go to her apartment for some paperwork but here she discovers that Maria was about to adopt a Vietnamese girl named Thi Mai. Carmen then decides to go to Vietnam with her friends Elvira and Rosa, although none of the three has ever left Spain in their life. During the search for Thi Mai, they will have the opportunity to experience crazy and hilarious situations caused by cultural differences. They will be accompanied by Dan, a Vietnamese guide, and Andrés, a young Spanish actor going to Hanoi to live with his partner.