Two teenage stepsisters living in the same house couldn't be more different. One is academic pretty, and quite cosmopolitan, while the other is tough minded and proud of her working class roots. When one sisters accidentally kills the other, the young girl is convicted of murder and sentenced to a long stay in prison. After 17 years, she is granted a special furlough for New 4Year's. When her parents fail to pick her up, she's left stranded. What follows is one of the most moving and bittersweet family reunions ever depicted on film.