Lea is a young girl on the brink of death. She begins her final challenge, a thesis that seeks proof in the belief that happiness can be multiplied, as can the feelings of sadness, loneliness, and misery. Unfolding the research, she discovers the "Werther Effect", a phenomenon that creates a negative domino effect. She turns to her work on a project which will achieve the opposite effect, something which would be named the "happiness effect". Utilizing an eclectic, individualistic approach to experimentation and the power of positive thinking, connections and equations lead her on a path to uncover ultimate happiness.

　　马拉斯表面上是一家车行的修车工，但暗地里却做着偷车的营生。一次他在外出工作时自做主张偷了一辆黑色奔驰车，却发现自己无意中卷入了一场地下毒品交易和谋杀案中，因而遭到了警察局长斯图帕尔和黑帮头目戈卢布的双重追击。为了不牵连家人，马拉斯只能投靠与黑帮有勾结的斯图帕尔，从此踏上了一条命运未知的道路。