Honestly not even worth my time, but I can't remember seeing something this bad that made me this upset afterwards. Horrific writing, terrible acting, and an overall wretched experience. No saving grace in this film. The dialogue sounds like it was written 3 days before they shot the film... which also looks like it was done in one day. Filled with exposition and horrible plot holes, the only thing this movie killed is my appetite.

Who is this world has ever called their mother-in-law 'Grandma', Melissa even refers to her as 'Grandma' when talking about her to her husband. Maybe the women's name WAS Grandma!

Poor acting and predictable script but still watchable. Not sure how old the girl Annie, was but the parents referred to each other as 'mum' and 'dad', and they treated her as though she were a toddler.

On to scary killer Grandma. I'm not sure if they did something to the actresses face to make her look odd and scarier, but it sure worked.

It's hilarious, two friends found dead, Mellisa nearly run over by 'Grandma', Grandma buys a dress for Annie that make her look like the girl from the film Orphan... and still they keep her on in their house. They say, they 'need a little space' - have you seen the size of the house? Hilarious and the story has been done many times. NB: were the kids all inhaling helium????

It was negligence on the part of Yvonne Hutchinson when her baby daughter Megan drowned. Yvonne sent the children outside to play unsupervised, and when the child drowned, Yvonne never forgave her seven-year-old son Tom who tried but failed to save his sister.

Years later, Yvonne discharges herself from the Wingdale State Mental Hospital and makes a beeline to the home of her son Tom and wife Melissa. Yvonne fashions herself as the long, lost Grandma who wants to be close to her granddaughter Annie. In fact, Grandma has an obsession to kidnap Annie and raise her as if she were Megan.

"Killer Grandma" (a.k.a., "Killer in Law") was far too predictable and overly violent with casualties in the kind nanny Hailey and Melissa's bestie and co-worker Courtney on the receiving end of Grandma's malice. Both Tom and Melissa were slow in recognizing the danger signals on the part of the obsessive Grandma. Even when Grandma nearly runs over Melissa with her car, the couple still accept her story that "I must have put it into drive instead of reverse"!!!

After the senseless murder of Courtney, who had recorded Grandma's bizarre and potentially violent behavior on camera, Yvonne Hutchinson utters words that are a gross understatement about the vision of this film: "We live in strange times." Indeed.