is a 2019 science fiction horror-thriller that marks the fourth feature collaboration between visionary directors Justin Benson and Aaron Moorhead . The film follows two New Orleans paramedics whose lives are upended by a series of bizarre, otherworldly deaths linked to a new designer drug. Core Premise and Plot

The story centers on Steve ( Anthony Mackie ) and Dennis (Jamie Dornan), lifelong friends and paramedic partners in New Orleans.

When Dennis’s teenage daughter, Brianna (Ally Ioannides), disappears after taking the drug, Steve—who has been diagnosed with a terminal brain tumor—uses his remaining time to experiment with the drug and rescue her from the past. Production and Themes Synchronic (2019) - Full cast & crew - IMDb

Steve discovers that the drug interacts with the pineal gland to warp time, allowing users to physically travel into the past for approximately seven minutes.