Fresh from making a name for himself on HBO's hit fantasy series Game of Thrones, Nikolaj Coster-Waldau has landed a role opposite Jessica Chastain in the horror movie Mama.

Guillermo del Toro will executive produce this thriller. The story follows a young married couple that take in their long-lost nieces and nephews, who had been lost in the woods for the past five years. It soon becomes apparent that a malicious supernatural force is after the kids.

Andres Muschietti will direct Mama for Universal Pictures, expanding his own short film to feature length with the help of screenwriter Neil Cross. Principle photography begins October 3rd in Toronto.