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.
蒋勤勤,王群英,胡正中,李文伦,夏雨,蒲心惠,白路平,蒲心玉
山口百惠,三浦友和,绘泽萠子,风见章子,小松方正,桑山正一,名古屋章,中村伸郎,中村竹弥,榊原郁恵,品川隆二,加藤昌彦
爱德华·费尔南德斯,克拉拉·塞古拉,佐伊·博纳丰特,萨尔瓦·雷纳,奥斯卡·德·拉·弗恩特,贝茜·特内兹,文森特·罗米洛,卡洛斯.古尔巴斯,Carme Sansa,大卫·贝尔达格尔,Aimar Vega,Lolo Herrero,波贾·埃斯皮诺萨,玛丽亚·莫雷拉,Jan Serra,Pep Ferrer,米瑞亚·雷伊,Eli Iranzo,Francesc Ferrer,Salustiano Torres
文峰,李帝勋,丹尼尔·C·肯尼迪,柳海真,Bianca Lau,Maurice Turner Jr.,Derek Chouinard
竹内凉真,木村文乃,北村一辉,星野真里,小泽真珠,渡边大,寺岛进,内藤刚志,柄本明
马丽,惠英红,朱亚文,王祖蓝,薛凯琪,谢天华,潘斌龙,袁富华,江美仪,太保,张达明,姜大卫,鲍起静,方平,谷德昭,黄德斌,余安安,秦煌,卢惠光,龚慈恩,车婉婉,张达伦,易天雄,陈奂仁,宝珮如,林珊珊,林晓峰,吴志雄,王敏奕,冯文娟,雅玫,黄璐,杨青,黄楚桐,赵润南,王佳怡,林恺铃