Impossible

A young woman by the name of Cassie has a usual life. She has to look after her 14 year old sister because her mum and dad were killed in a car crash. She has a job as a programmer but she isn't as good as her workmates. She doesn't get much money so it's hard for her to say food for her family. She's despite for help. She needs someone to help her look after her family and help her with her job. But no one will come. She tried online dating but that always turns out bad so she stopped.
One day when she is at work she feels sick so she goes home and there is a suprise wating for her there that may just save her.