Alex Hughes, an ex-convict, is on a road trip to Winnipeg to see an old friend. Along the way, he meets the annoying, but vivacious, Vivienne Freeman who manages to bum a ride with him. Just as he begins to warm to this eccentric girl, Alex's vehicle is in a serious automobile accident that kills Vivienne. After his meeting with the police, Alex decides to speak with Vivienne's mother. Upon arrival at her home, Alex discovers that the mother, Linda, is a highly functional autistic woman who convinces him to stay long to take out the garbage the day after the funeral he agrees to arrange. In those few days, Alex discovers new friends and learns more about the uniqueness of Linda even as he struggles to come to terms with his own grief. Hello Sunshine。Piece of sunshine on the piece of Snowcake。Snow Cake - 一齣不能錯過的電影。紧紧拥抱我，但勿将手碰到我。雪落的声音就是童话。光。Dazlious！。温暖的雪花蛋糕。明媚的阳光，温暖的雪。snow cake——hello sunshine。 刚刚出狱的Alex（阿伦•瑞克曼 饰）本想独自一人到加拿大去，随后他在餐厅里遇到了少女Vivienne（艾蜜莉•汉普雪儿 饰），她想坐Alex的顺风车回到母亲居住的小镇。性格活泼的Vivienne跟Alex形成了鲜明对比，两人一路上也有说有笑，怎料途中他们的车被一辆卡车撞上，Vivienne当场死亡。 十分内疚的Alex带着Vivienne准备要送给母亲的礼物来到了小镇，他发现Vivienne的母亲Linda（西格妮•韦弗 饰）行为古怪，原来她患有自闭症。接下来的日子里，Alex留在了Linda的家中，帮忙Linda料理生活上的事与安排Vivienne的葬礼。 此间，邻居Maggie（凯瑞-安•莫斯 饰）对Alex产生了好感，更从当地警察的口中得知了Alex的背景。另一方面，Alex在与Linda的相处中，对自己的过去渐渐释怀。
