Two very different brothers: Gregor (32) and Pietschi (30). Whereas one is reliable and committed, the other is spontaneous and aimless. Gregor is married and is a good doctor; Pietschi in contrast is something of a ladies’ man and a hedonist. According to tradition, the two see each other at least once a year for a weekend of sailing. But this year Pietschi drops out without leaving a message, and simply disappears. Gregor’s life goes on, but he is confused and searches everywhere for a sign of...