Watch on 123Movies. Elías is a young man who, after getting off to a great start in his career as a horror writer, faces a creative block filled with insecurities. This leads him to seek out Mercedes, his trusted therapist. Through a psychological therapy session, Elías recounts the events of the last time he tried to write, as well as the mysterious and terrible events surrounding his creative process. Could Elías be suffering from impostor syndrome? Or is something ancient and terrifying influencing him?