The Angel's Melancholy

Melancholie der Engel is a 2009 German independent extreme horror film directed, shot, and edited by Marian Dora, who co-wrote the screenplay with Carsten Frank. The film stars Frank and Zenza Raggi as old friends who reunite and return to a house with a dark past.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.