The Sweet House of Horrors

The Sweet House of Horrors in original Italian, La dolce casa degli orrori is a 1989 Italian horror film directed by Lucio Fulci.

Mary and Roberto Valdi Lubka Cibolo and Pascal Persiano return home from a party to find a masked intruder ransacking their elegant country house. The masked man attacks and brutally kills both of them, and then disguises their deaths as an auto accident by driving their dead bodies to an isolated hilltop in their own car and pushing it over the edge.At their parents funeral, bereaved children Sarah Ilary Blasi and Marco Giuliano Gensini exhibit a strange mixture of grief and stifled hilarity, chewing gum whilst weeping and giggling at the elderly priest Dante Fioretti conducing the graveside ceremony. The childrens Aunt Marcia, Mary Valdis younger sister Cinzia Monreale and Uncle Carlo, her husband Jean Christophe Bretigniere, decide to stay with the children at the Valdi house while arrangements are made to sell the property. When Carlo is called away on business, Marcia spends an uneasy night at the Valdi house without him. Disturbed during the night, she explores the attic and is frightened by a giant toy fly which seems to attack her. ........

Source: Wikipedia