For those who have not read many Agatha Christie books, it is worth mentioning that Hjerson is not her character at all. It is just a name for a detective in novels written by a character of Agatha Christie, Ariadne Oliver. Suffice to say, Hjerson is not described nearly as much to deserve to have a series on its own. It is clear that the writers used the title to lure Agatha Christie fans into something that is a complete waste of time. The show is absolutely boring to watch with no exciting twists and the acting is not on a high level. I wouldn't recommend it at all.