闽北早春,寒意料峭。一个雾气茫茫的夜晚,一部破旧不堪的农用车,行驶在山区公路上,车上4名玩乐通宵的年轻人,在歌舞厅潇洒后仍醉意朦胧。突然,车子冲向路右,沿路肩滑了20几米撞到了山边。其中一个青年被撞成重伤,送医院不治身亡。另外3个年轻人顿时清醒了许多,但他们不是及时向警方报案,而是商议逃避责任的“攻守同盟”…… Northern Fujian early spring, chill surprisingly. A foggy night, a dilapidated agricultural vehicles, driving in the mountains on the road, the car four young people to play all night, in the song and dance halls still chic after drunk. Suddenly, the car rushed to the right, slipped 20 meters along the road and hit the mountain. One of the youths was hit badly and was sent to the hospital where he died. The other three young people suddenly wake up a lot, but they do not promptly report to the police, but to evade the responsibility to discuss the “offensive and defensive alliance” ......