The plot is simple. Of the five sisters, only one is married. And the son-in-law (Joe) is a complete bastard. They don't like him, he loves them. He's oppressing Grace, but she doesn't get it. He has something to blackmail each of his sister-in-law, and they have dirt on him. The sisters decided to kill him to solve all the problems.
Only 10 episodes, and each sister develops a way to destroy the enemy, but each time they fail. But the son-in-law is still found dead.
After Joe's death, the insurance company doubts that the client died of his own death, and the owners of the company (the two brothers) begin their own investigation to avoid paying insurance to the widow.
The film is good because it shows a friendly sisterhood. Sisters take care of each other, but that doesn’t mean everything is in their openwork. There's enough trouble in your personal life. I enjoyed watching. No stupid episodes. High English quality.
P.S. Translated illiterate translators son-in-law called brother-in-law.