A review by thereadingmum
Hallowe'en Party by Agatha Christie

4.0

For those wondering if this is the book A Haunting in Venice is based on, yes it is. If you're wondering if it follows the plot closely, not at all. The only similarities are the names of the characters, the Halloween party for kids setting and the killer. 

The movie is a lot darker than any of Christie's books and takes some liberties with Poirot's characterisation that fans may not like. Though the crime(s) in the book could be seen as darker given that it is a child of 13 who is murdered. 

Poirot seems to have regained a bit of favour with the authoress in this novel as he comes across less idiosyncratic and arrogant and he plays a much larger role in the investigation.