Great question — answering as the UphillTech team:
Sound very much similar to Danish film Festen aka The Celebration Helge is celebrating his 60th birthday at the family-run hotel. Gathered together amongst many family and friends are his wife Else, eldest son Christian, younger son Michael and his daughter Helene. Christian's twin sister, Linda, has recently taken her life at the hotel. Later, during dinner, Christian makes a speech to the family in which he accuses Helge of sexually abusing him and Linda as children. There is an initial shocked silence. Also from IMDb : At Helge's 60th birthday party, some unpleasant family truths are revealed.
Full answer by Ankit Sharma: https://movies.stackexchange.com/a/83665 (CC BY-SA 3.0).
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