Based on

Movies like La Perra (1997)

Graciela grows tiresome & jealous of her husband Diego's dog "Ixchel". Ixchel is pampered and always given the attention she wants. When Graciela leaves Diego for good because of Ixchel; she ends up stuck outside of town and that is where she meets the individual who's been killing people all-around there and it is someone or something unexpected..