The film takes place in Toulouse and tells the story of Jean, a 55 year-old policeman who discovers his son, Maxime, and his son's boyfriend hanged in a hotel room. The autopsy shows that he died from an overdose of GHB, just seven minutes after his boyfriend. During an evening organized by Maxime's friends, Jean discovers the club BISOU, where his son used to go. There, he meets Fabien. Trying to know more about what happened, Jean goes to the club several times over and is quickly welcomed by the Bisouers. Fabien becomes attached to him, and Jean starts mixing his mourning with the desire to discover his son's world.
每两辆公共汽车之间的距离相等. 设两辆公共汽车之间的距离为单位“1”. 由题意中每隔9分钟……可知,车与人速度差为每分钟1/9. 由题意中每隔7分钟……可知,车与人速度和为每分钟1/7. (1/9+1/7)÷2=8/63,即为车的速度. 那么单位“1”的距离,即两车之间的时间为1÷（8/63）=63/8分钟. 所以该路公共汽车每隔63/8分发一次车.