Summer vacation is usually a time to relax and enjoy family. For François and his sons this particular vacation will be their most memorable yet...and also maybe their last. After hours of endless traffic jams, François and his children—Kevin, the withdrawn teenager, and Baptiste who doesn't care for anything but his dog Hermione—finally arrive at their vacation destination in a village located in the South of France. But the tranquility of their stay is quickly compromised, not only by the heated relationship between François and his wife, Clara, but especially by the sudden disappearance of Hermione, who is not the only missing canine in the area... François quickly finds himself under the fire of suspicion, and his relaxing vacation becomes a spell of unrelenting psychological torment.