Streaming Janek/Bastard Tanpa Buffering (2017)

Krzysztof, an introverted 10 year old, faces his father's decision to hide a Jewish boy from a nearby village in the family's house. As the new boy prompts the father's attention, Krzysztof develops a flammable jealousy towards the other boy which reaches a dangerous peak and leads him to an irreversible act.