Charlie, a wealthy banker with an uneasy conscience, invites his troubled cousin Matthew to visit him and his wife in their idyllic mountain-top house over the summer. As the days grow hotter, the friendship between the three begins to reveal its fault lines.

When a fourth person arrives, the household finds itself suddenly in the grip of uncontrollable passions. Who is the real victim? Who is the perpetrator? And who, ultimately, is the fall guy?