Okay its review time!
One could clearly see that the writer had Rosamond Pike in mind while writing the story as she's a great fit for the role. Taking a cue from "Gone Girl".
However, the writer paid less attention to Peter Dinklage's character and even his crew in general. I mean, he was a mafia and i didn't get to see the Mafia in him portrayed in the film.
In conclusion, it opens ones eyes to the fate of lonely senior citizens in the country.