Ester Nilsson is a sensible person in a sensible relationship. Until the day she is asked to give a lecture on famous artist Hugo Rask. The man himself sits in the audience, spellbound, and, when the two meet afterwards, he has the same effect on her. From now on Ester's existence is intrinsically linked to this conversation, and the chain of events that unravels will change Ester's life. Arbitrary Conduct is a kind of dark love story, it is a story of total and desperate devotion and about how willingly we betray ourselves in our longing to be loved.