Theatre· Heidelberg
L , DL Stückemarkt 20
This appears to refer to the **Stückemarkt** (Play Market), a festival platform held in Berlin (associated with the Theatertreffen) that showcases and promotes new dramatic works by emerging playwrights, bringing their texts to audiences, producers, and theaters. The "20" likely indicates the 2020 edition. If you can share more details about the listing, I can give a more precise summary.