Remember watching parts of this when i was 8 or 9. I remember it was an older movie most like from the 70s or early 80s. Suspenseful thriller.
The one scene i remember in particular is a scene where there is a young woman listening to music laying on the carpet or a couch in the living room. Suddenly she is attacked by an unknown predator but the scene cuts to a different scene.
Later her friend / sister (another young woman) comes to the house and is horrified to find her friends decapitated head in the fish tank
Other notes – I think the woman who found her friends decapitated head is being stalked by an anonymous figure and he may have followed her to a theme park?
But yes please help me find this movie. Been playing on my mind for ages thank you