During a long awaited family soiree Cedric challenges his relatives why they keep him from his journey.

亚历山大（梅尔维尔·珀波MelvilPoupaud饰）和妻子玛丽（奥拉利亚·佩蒂特AuréliaPetit饰）结婚多年，一家人在里昂定居，小小的四口之家充满了幸福的欢声笑语。然而，亚历山大有着一段灰暗的过去，他在当童子军期间，曾经被他深深信赖的…