First several barns burn down, then an old house goes up in flames: For months, one arson attack follows the next. When a body charred beyond recognition is found in the rubble of the burned down house, the state police gets involved.

First several barns burn down, then an old house goes up in flames: For months, one arson attack follows the next. A firebug, whom everyone fears and no one has been able to catch, is up to his mischief. When a body charred beyond recognition is finally found in the burned-out rubble of the abandoned house, the state police gets involved. The LKA officers Franzi Heilmayr and Martin Merana initially believe in pure coincidence - until circumstantial evidence suddenly points in a completely different direction, from which deadly danger emanates.