Eva, a 29-year-old paraplegic and former dancer, has been living in a wheelchair for the past three years. On her birthday, she receives from her best friend Sophie a mysterious advent calendar. But the small calendar windows do not hide traditional sweets or candy, and as Eva opens them each day, she gets to face more and more disturbing surprises : sometimes pleasant, often terrifying, and increasingly bloody. Even though she knows she should stop this morbid countdown, she cannot help but carry on. On the first day everything’s fine... on the last day everything’s fine… In between, it is hell!