Ruby Modine is reuniting with Happy Death Day co-star Jessica Rothe and director Christopher Landon for a sequel to the Blumhouse hit. Modine co-starred as Rothe’s roommate in the doom-loop thriller about a college student (Rothe) reliving the day of her murder while attempting to identify her masked killer.

Happy Death Day 2 is said to reveal the mystery behind the time loop while delving into time travel. New to the cast are Suraj Sharma (Life of PI) as a science geek and coder and Sarah Yarkin (“American Horror Story”) as his tomboy, nerdy cohort. Production on the film began today.

The original Happy Death Day has earned $123 million in worldwide coin.