Pierre Perdrix has been enjoying an enchanted though restless existence since the enigmatic Juliette Webb burst into his life. A stranger who landed in his family’s unique world like a meteorite, and who by her presence alone will force this tight-knit microcosm to redefine their boundaries and finally begin to fully live their lives

　　故事讲述来自孤儿院的男孩西蒙拥有变身成其他人外型的能力，一次意外，西蒙化身成汤马斯，在汤马斯家中长大。拥有金刚狼和魔形女的超能力，男孩西蒙欺瞒大家过了数年。直到有一天他出于好奇变回自己现在的模样，意想不到的转折发生了。