Focus Features is developing a movie based on Paul Tremblay’s upcoming thriller “A Head Full Of Ghosts” with Robert Downey Jr.’s Team Downey and Dan Dubiecki’s Allegiance Theater producing.

Focus won an auction for the rights, topping several bidders including TriStar.

“A Head Full of Ghosts,” to be published in June by HarperCollins’ William Morrow imprint, centers on a normal suburban New England family being torn apart when the 14-year-old begins to display signs of acute schizophrenia — leading to tragedy as the family attempts an exorcism and finds themselves the subject of a reality TV show.

The writing team of Ben Collins and Luke Piotrowski will write the adaptation. Tremblay, who specializes in dark fiction and fantasy, has authored “In the Mean Time,” “The Harlequin and The Train” and “The Little Sleep.”

APA’s Steve Fisher brokered the deal. The news was first reported by Deadline Hollywood.