Anton Stadler and Verena Danner investigate the fatal beating of in the Inn-Auen of Bettina Neuhaus, left on a picnic blanket set or two. Bettina's husband Karl-Heinz Neuhaus believed her on an art auction in Munich, which she attended with secret lover Felix Lehmberger, but they fought. That night, a break-in by key in Bettina's antiques shop is discovered by employee Mareike Mattusch stealing only some cash and minor items. Christian Bach, who rejoined the theft section, recognizes the MO which fits innkeeper Alfons Patzer, whose guests are suspiciously often robbed during walks or picnics he helped them with.