Jesper grew up in a family of filmmakers and his desire to write stories naturally drew him to screenwriting. Two of his screenplays made it into Hollywood movies starring, among others, Rob Lowe and James Belushi.
Always wanting to write novels and craving the autonomy that would give, he embarked on the long and lonely road of writing his first novel Out Came the Wolves which was quickly followed by Shadow of the Dead and Dance With the Devil.
Jesper lives in Stockholm, Sweden, with his wife and two young children.