Unofficial adaptation of Agatha Christie's Hercule Poirot's Christmas.
An actual murder took place 125 years where this film was shot, at the beautiful Dunbeath Castle located in Norther Scotland.
Vidya Balan's first theatrical release post COVID Pandemic. Her last theatrical release was Mission Mangal (2019). Her previous releases Shakuntala Devi (2020), Sherni (2021) and Jalsa (2022) all premiered on Amazon Prime.
If you are wondering that the BGM of the trailer sounds familiar, then you are very right. It is the very famous "Figaro cavatina".
During shoot, crew members apparently experienced some unusual supernatural activities at Gaddesden Estate where the interiors of the film were shot.