在这部异母姊妹剧情/喜剧/家庭片中,内奈特是个60岁的小女孩。因出生缺陷而让她与众不同。内奈特的精神年龄只相当于一个8岁的小孩，她一直跟母亲住在一起，母亲将她一手养大。内奈特有自己的工作，她在一所镇里的学校当清洁工，她最好的朋友是一只乌龟。然而当她母亲去世时，一切都变了，内奈特必须转去一所养老院。而养老院里不允许养动物，内奈特于是怀揣找到父亲的想法，带着行李和她的乌龟出发了，而她只有一张泛黄的照片、一封信和一个地址。当内奈特最终找到信上的地址时，发现这是一间药房，在这里她找到的不是她的父亲，而是她父亲的儿子，患有心理疾病的药剂师保罗·贝拉尔，他对自己异母姐姐的突然到来惊愕无比。
Nenette, who has the mental age of an 8-year-old, has always lived with her mother, who raised her alone. Nenette works, cleaning the community school, and her best friend is a tortoise. But when her mum dies, she faces life in a retirement home. But, as the institution doesn't accept animals, Nenette sets out with her suitcase and her tortoise, planning to find her father, whom she knows only by a yellowed photograph, a letter and an address.
