Variety reports Skarsgard is attached to headline the film, which comes from director Charlie McDowell ("The One I Love").
The project is adapted from a Vanity Fair article about the murder of hedge fund millionaire Thomas Gilbert Sr., whose death was originally believed to be a suicide until an investigation ended with the arrest of his son.
Skarsgard will play Thomas Gilbert Jr., who was accused of murdering his father after his allowance was cut. Gilbert Jr.'s trial is currently ongoing.
Skarsgard has been busy since breaking out in "It." He appeared in Hulu's Stephen King adaptation "Castle Rock" and will reprise his role as Pennywise in "It: Chapter Two." Other upcoming projects include "The Devil All the Time" and "Emperor."