Memento Mori - "Remember you must die" is the message that an anonymous caller issues to several elderly people, who all react differently to receiving the nuisance calls.
What follows is a confused look into the lives of the recipients of these calls and into the way that society neglects the elderly.
I don't know what it was about this book, but I rather disliked it. I gather from the reviews of others that there is humorous, yet, macabre writing in this, but I didn't really find much humour in it and found it more sinister and cynical than anything.
Not for me.