Dec is a writer and director known for bold, high-concept genre work with a sharp commercial edge. He made his feature debut with Countdown, a Blumhouse-style horror film based on his own script. Produced for just $6 million, the film grossed over $60 million worldwide and became a breakout hit for STX Films—establishing Justin as a rising voice in modern horror. 

He was soon tapped by Sam Raimi to write and direct an episode of 50 States of Fright for Quibi. Justin has continued to expand his storytelling into new formats and tones. He’s currently writing Countdown 2.0 for STX/Lionsgate and his first novel, Sentry, which is in consideration at a leading genre publisher.

Next up, Justin is attached to direct the feature Looking-Glass House, produced by James Swarbrick (The Babadook, Relic, Run Rabbit Run), currently being shopped by WME.

He first broke out with a string of viral, award-winning shorts that lit up festivals worldwide. His accolades include Best Director at the New York Television Festival and honors from the American Advertising Federation and WorldFest Houston.

Justin has been featured in top genre and pop culture outlets like Collider, Fangoria, and Daily Dead, with coverage praising his sharp instincts and fresh voice in horror. He aims to tell stories where ordinary people collide with the extraordinary.