Shack on forest track

The Doppler family’s old shack. It has been empty for years. Behind it, there is an underground bunker. Peter sometimes retreats here when he needs peace and quiet.

When Charlotte starts making inquiries into her father-in-law, Helge, who lived here in the early 1980s, she discovers a scrap of wallpaper with childish animal motifs. What did the bunker look like 30 years ago? What happened here then?