暴走！霸凌！失控教室！ 當國中老師艾瑞克，在全班面前，從窗戶跳出墜樓自殺後，他的好友皮耶加入此學校，擔任代課老師。然而皮耶慢慢發現他所代課的資優班級-301班，其中學生與其他班級間不同的能力差異與相處模式：301班的資優生小團體，有禮貌卻冷漠疏離的態度，開始對皮耶造成無法磨滅的高度心理壓力。 他不得不開始懷疑朋友自殺原因，是否真為自殺，或另有無法解釋的緣由，探究同時，他的私生活也被神秘電話及無名騷擾而步入混亂及危險中……。

One day, Jean-Louis discovers that his heart has stopped. He is not dead, can walk and talk, but his heart is no longer beating. With the help of his wife and a friend, he tries to understand the origin of this mystery.

Two, very different, brothers are reunited for their father's funeral. But, when they arrive at the crematorium nobody is there, not even the corpse, except for Chloe who introduces herself as their sister.