Byleth: The Demon of Incest is a 1972 Italian gothic horror film directed and written by Leopoldo Savona. Set in 19th-century Italy, the film features Mark Damon as Lionello Shandell who welcomes his sister Barbara and her new husband Giordano back to their castle after their trip to England. The two siblings are strongly affectionate for each other and the new marriage has caused Lionello into a mad jealousy which Giordano tries to cure as murders begin mysteriously happening around the castle.

Byleth: The Demon of Incest (1972)
Directed by Leopoldo Savona
Description by Wikipedia
Movie Info
Tags
Murder
Attributes
Filming Location: shot in Rome
Narrative Location: Italy, set in castles, set in Italy
Time Period: set in the 19th century
Narrative Location: Italy, set in castles, set in Italy
Time Period: set in the 19th century
Alternate Titles
Byleth
GB, US
Byleth (El demonio del incesto)
ES
Byleth (Il demone dell'incesto)
, IT
Byleth - Der Dämon mit den blutigen Fingern
DE
Byleth - Horrorsex im Geisterschloss
DE
Byleth: Ensest İblisi
TR
Byleth: The demon of incest
US
Les démons sexuels
FR
Trio der Lust
DE
Белет - демон инцеста
RU