On Humboldt Street lives a numerous family who engage in strange occupations. An Ant makes sure the dead were accordingly mourned, a couple of twin girls practice hawling at the moon, Lucas prepares a genealogical tree. Whenever possible, the family gets together around one single occupation as complex as useless into which they put huge efforts. Today they are involved in seeking, down the drain, a strand of hair with a knot in the middle, left in the bathroom sink.