Evil follows Dr. Kristen Bouchard, a skeptical psychologist, who works with David Acosta, a priest-in-training, and Ben Shakir, a tech expert. Together, they investigate supernatural occurrences, using science to analyze unexplainable events while confronting the possibility of demonic possession and miracles. The series blends psychological tension with supernatural horror, exploring whether good and evil are absolute or subject to interpretation.
As the team investigates more cases, they deal with their own personal struggles and beliefs. Kristen begins to question her own faith, torn between rational explanations and unexplainable horrors. David wrestles with his religious duties and the temptations he faces in the real world, while Benโs technical expertise often leads to breakthroughs in cases involving high-tech or modern paranormal events.
Throughout the series, the trio is pursued by dark forces, often blurring the line between science and the supernatural. While solving cases, they uncover deeper conspiracies, suggesting that powerful and malevolent forces are influencing the world. Each investigation pushes them toward a greater existential understanding of good, evil, and everything in between.
The series ramps up the tension as the team faces personal and professional conflicts, drawing them closer to understanding the true nature of the forces they are fighting. As the storyline unfolds, they confront larger questions about destiny, free will, and whether evil is a force to be defeated or an inevitable part of life.