Byleth A boy is blinded with incestuous passion. A young man becomes obsessed with Byleth, the demon of incest, and it leads to an unhealthy infatuation with his sister. Details Casts Galleries Posters Title Byleth Release Date 1972-05-31 Runtime 01 Hours 21 Minutes Genres Drama Horror Production Companies Agata Film Production Countries Italy Mark Damon... Duke Lionello Shandwell... Claudia Gravy... Barbara... Aldo Bufi Landi... Giordano... Fernando Cerulli... Doctor... Silvana Pompili... Floriana... Marzia Damon... Gisella... Antonio Anelli... Il Preta... Franco Jamonte... ... Tony Denton... ... Florian Endlicher... Lover of 1st Victim... Karin Lorson... Dolores... Original Size (1920x1080) Original Size (1920x1080) Original Size (1920x1080) Original Size (1280x720) Original Size (500x750) Original Size (1200x1800) Original Size (898x1280) Original Size (977x1466) Original Size (706x1000) Original Size (753x1130) Original Size (700x1000) Original Size (1200x1700) Original Size (1400x1988) Original Size (1500x2000) Original Size (1000x1433) Original Size (1000x1469)