District 9 star Sharlto Copley was recently cast in the lead role for the upcoming thriller.
The six actors will each portray a character who wakes up next to an open grave of decaying bodies with no idea how they got there, reports Deadline.
Copley's character experiences flashbacks that make him think he could be connected to the dead bodies.
Open Grave, directed by Gonzalo Lopez-Gallego, will be filmed in Hungary.
Copley previously confirmed that he will be joining the US remake of Korean film Oldboy, to be directed by Spike Lee.
Watch the trailer for District 9 below: