Mateo Álvarez-Moreno is an undercover agent at the Department of Supernatural Activity (DOSA) and has recently been assigned his worst mission yet: as the first gay lead on the reality TV dating series Red Flags. With intel suggesting that one of the contestants is secretly a demon, Mateo’s task is to apprehend the monster before it can kill the other contestants and crew members. As Mateo gets to work, he begins to question the true motives behind his mission. With a disgraced former DOSA agent on the show's staff and contestants possessing supernatural abilities, Mateo suspects that he may have been brought here under false pretenses. Is this all just a ploy for higher ratings, or is something more sinister at play? As tensions rise, someone is found murdered, and Mateo realizes that there are real dangers lurking behind the glitz and glamour of reality TV. With the fate of his fellow contestants on the line, Mateo must race to save them all or he risks starring in the most murderous season in Red Flags history.

Haunted by the recent murder of his father, paranormal investigator Mateo Álvarez-Moreno returns to his hometown to grieve. One night while visiting his dad's grave, Mateo encounters a vampire who delivers an ominous the dead are coming for him. When terrifying ghostly encounters begin to plague Mateo and his loved ones, he enlists his friend Bao, a medium, for help. But even his attempts to communicate with the spirits can’t protect them from the true evil lurking in the shadows. This is no ordinary haunting. Whatever is after Mateo wants to eat him—flesh and bones. As the threat closes in, Mateo must move beyond the guilt and grief of the past to face this monster. Because no smudging or seances will protect him from the Hell beast that’s been unleashed…

After an evil warlock kidnapped his boyfriend and best friend, Mateo Álvarez-Moreno’s life is shattered, and he’ll stop at nothing to get them back. But their abduction is only the beginning. A powerful crystal has been stolen, an artifact said to grant invincibility and unimaginable strength. In the wrong hands, it could lead to the end of humanity. And Mateo suspects it’s in the hands of a billionaire hellbent on godhood. To save the people he loves—and the world—Mateo must return to the one place he swore he’d never go the infamous Red Flags mansion. Whispers say the crystal is hidden there, along with the captives he’s desperate to rescue. But the mansion holds more than secrets. It’s a labyrinth of betrayal, dark magic, and horrors that defy reason. Every second counts as Mateo battles demons, vampires, and other monsters who try to thwart him from stopping a ritual to end the world. With his friends scattered, his magic pushed to its limits, and the world teetering on the brink, Mateo has one burn it all down before it burns him.