The Schroeders are spending their last Christmas vacation together on a resort island in Thailand. In Patong, their son Felix falls in love with an enigmatic Thai woman, Fai. Felix's brother and his mother, Annegret, suspect that Fai is a prostitute. But Felix is swept away by her. At the end of the vacation, he decides to simply stay longer – even though he has yet to discover the true mystery behind the beautiful Fai. His parents are appalled. This isn't quite what they expected when they told him to “follow your heart”! Annegret too decides to cancel her flight home and goes looking for her son in the backwaters of Thailand. She finds her son, and herself as well.