Adam and Eva have been together for ten years, since law school. When Adam changes his profession to start a Thai boxing studio, he gradually becomes cold towards Eva. The couple eventually breaks up. Still not over the breakup, Adam gets drunk and sleeps with his student. One day, Adam stumbles across Eva`s private journal, titled "77 Heartbreaks", and finds out it refers to the 77 mistakes he has done towards her. He now searches for a way to reunite with Eva but it might not be so easily done, especially after his drunken affair.