在同学眼中,米卡是个怪咖,整天活在自己的世界里。有一天,米卡家隔壁搬来了两个新邻居:因赌博而负债累累的数学家沙夏和他买乐透彩所赢得的一匹骏马。沙夏想卖掉骏马抵债,却遍寻不着买家,而米卡和马儿的偶遇,也意外地让米卡活出了新的自我。正当沙夏决定让马儿陪在米卡身边时,却不知道坏蛋债主早已策划了邪恶的阴谋…The boy Mika suffers from Asperger's and finds it difficult to communicate and make friends. Then he sees a real horse on his neighbour's balcony. He feeds the animal apples and starts making friends with it. The horse's owner owes money and the horse has to be hidden from his ruthless creditors. Dana, an Indian girl from Mika's school, shares his love for the horse, and they have various adventures through their efforts to save the horse from slaughter and the ruthless creditors of its owner. For the first time in his life Mika has a real friend.