Hercule Poirot's Christmas by Agatha Christie

Agatha Christie is one of the most celebrated crime writers of all time. Her fictional detective Hercule Poirot has appeared in over fifty of her stories as well as in numerous adaptations on TV, film, and radio.

From Goodreads:
"In Hercule Poirot's Christmas [1938, approx. 256 pages], the holidays are anything but merry when a family reunion is marred by murder — and the notoriously fastidious investigator is quickly on the case. The wealthy Simeon Lee has demanded that all four of his sons — one faithful, one prodigal, one impecunious, one sensitive — and their wives return home for Christmas. But a heartwarming family holiday is not exactly what he has in mind. He bedevils each of his sons with barbed insults and finally announces that he is cutting off their allowances and changing his will. Poirot is called in the aftermath of Simeon Lee's announcement."

There are a few copies available at the Stockholm Public Library.