A college student unwittingly releases terrifying entities from her school's past via a Halloween-themed computer meme.

'Catalyst' follows two brothers searching for closure while coping with their parent's divorce. The younger brother, Terrence (Justice Rieth) looks above, to God and the church. The older brother, Keeran (Nick Kavanaugh) hopes a friendship he has with a talented classmate (Erika Sorenson) can turn into more, proving to himself that he will not take the same road as his parents.

FBI agent Audrey Parker arrives in the small town of Haven, Maine to solve a murder and soon discovers the town's many secrets—which also hold the key to unlocking the mysteries of her lost past.