Vivian Potts is haunted by dreams of her recently deceased husband, Alex. When her sister admits to having similar dreams, Vivian is convinced Alex is trying to communicate with them. Is she losing her mind or is the truth even more terrifying than she could ever imagine?

Capitalizing on a rash of sightings of the legendary creature called El Chupacabra, Spanish for The GoatSucker, a touristy hiking company creates a GoatSucker hiking tour. The pleasant hike turns into a nightmare when disturbing events cause the group to suspect that The GoatSucker may be more than just a legend.