The Cabin at the End of the World

A family (Wen and her two dads) is spending the summer in a cabin near a lake, far from everything. One day, four people trespass. They just want to talk. They just need to explain the situation. Someone in the family must sacrifice themselves or else the world will be destroyed.

From this very simple idea, the author is able to create a brilliant thriller. Shocking at times. Often violent. Constantly enthralling. Mind-blowing, even. Couldn't stop reading it on the plane. Got myself the right soundtrack, and just went right trough it.