123Movies. “Marianne’s Onion” is a true story from the pandemic based on an interview with Marianne Ross. 86-year-old Marianne hikes through the valley behind her house one day when she is in need of an onion and finds one miraculously in the woods. The film follows her journey from first discovery, to the reactions of her community, to her hilarious and poignant musings on the meaning of unexpectedly receiving a seemingly mundane gift.