Revenge?

After a big storm Allise has to rush out of her house to bring an injured dog to the vet. She has to repair her farm but after things start to go missing and animals start getting mysterious injuries she is forced to think someone is after her. Soon after she starts to get hate letters from an unknown source, but who is this person and why do they want to hurt her? How do they even know her and why do they have something against her?