It's a visual novel about a girl called Stella (but you can name her what you want - I lke to call her meep) trying to escape from pursuers on Christmas Eve. Different plot details and back story is given through each of the different paths- which lead to 4 possible endings.
Be prepared, there is a lot of reading... afterall it is more of a novel than a game... but it still does give u some choices along the way - so have fun playing it and changing the path the story takes.