A young home nurse, who has been treating a burn victim for some time, accidentally discovers, during a very hot summer day, that he takes pleasure in hurting him.

Stefano drives his father Renato, suffering from a serious degenerative disease, to Switzerland to help him undergo assisted suicide. Everything seems already decided, except the fate of the family car: the old Fiat Panda driven by the son.

A new chase starts, but there is no escape from the evil that stirs among the field's rows.