Carefree and making their way across Europe, Peter and Anne meet a group of locals in Amsterdam willing to show them around to the various sites and galleries.  Finding their guides fun and engaging, they agree to accompany them to their home in the outskirts of town and enjoy dinner, desert, and new guests who arrive during their stay.  As the alcohol flows and the night drags on, Peter and Anne agree to spend the night in the Amsterdam couple's old windmill recently converted to a guest bedroom.  After a restful and relaxing sleep, the young couple make their way to their guests house to help clean up and start breakfast.  Inside, they find their hosts brutally slain bodies.  What follows is a harrowing escape from Europe that will not only change their lives, but the course of the world.