How to Murder Your Mother-In-Law

By Dorothy Cannell

Mother-in-law trouble.
Ellie has invited her husband's parents, Magdalene and Elijah, to visit and to celebrate their wedding anniversary. Ben, the husband, warned her that his parents weren't all that keen to celebrate their anniversary, but Ellie perseveres. She even invites a very old friend of Magdalene's, Beatrix, to dinner, only to find out that the Beatrix and Magdalene have not been on speaking terms for forty years. When they were young adults, Beatrix talked Elijah into skinny dipping and Magdalene has never forgiven her for doing so.
Magdalene is the cliché mother-in-law, overly critical and nitpicking at Ellie. Having her in the house is a real burden for Ellie. But it turns out that Ellie is not the only one having mother-in-law troubles. Beatrix lives with her son and his wife. Beatrix is a bit eccentric. At one point she puts hair remover in the shampoo bottle without bothering to tell anyone. She also accidentally cooked her granddaughter's pet goldfish.
Two other friends are dealing with difficult mothers-in-law. Pamela and her husband live with his mother and she calls all the shots. The husband has to turn his paycheck over to his mother and she gives him a small allowance. She also requires that no one speaks during meals, among other overbearing and controlling behaviors.
Ellie's other friend Eudora's mother-in-law is a thorn in her side. Eudora is the vicar of the local church and a nonsmoker. Her mother-in-law is an atheist who constantly pokes fun of the Bible and, despite Eudora's requests not to, continues to smoke her cigarettes in the house, evenutually sparking a small fire in the house.
The friends get together one evening and jokingly plot ways to murder their mothers-in-law, all in good fun. That is until one of the old ladies is pushed off a cliff, one is poisoned and one's brakes on her bike are tampered with. The four friends begin to doubt each other and, to make it worse, Ellie is being blackmailed.

I had a hard time getting into this story but it began to grow on me after awhile.  I guess what I didn't like was Magdalene being such a cliché and Ellie being such a doormat. But I warmed up to the story and by the end I quite enjoyed it.

Review from Publishers Weekly.