Butterfly Kiss (alternative title Killer on the Road) is a 1995 British film, directed by Michael Winterbottom and written by Frank Cottrell Boyce.
Eunice hitches a ride with a delivery driver named Tony, who she murders as they have sex, stealing his van.
As the two arrive at a forest, Eunice reveals the corpse of Tony, Miriam offers to help her conceal the evidence, and drags the body out to bury it.
Whilst Eunice is away from the car, Miriam discovers the body of Angela in the boot and refuses to allow Gary and Katie to travel any further with them.
Miriam forces Eunice to pull over and leaves Katie by the side of the road, telling her to find someone to take her back to the park.
After making a light-hearted joke at her expense, Eunice invites Robert to have sex with the two of them, putting forward Miriam.
Miriam negotiates a ride with Mr McDermott and as they go with him, Eunice begins to throw his cassettes out the window, stating that he needs to be punished.
The film closes as Miriam cradles the body of Eunice in a Pieta pose, sobbing in the midst of the rising sea.
"[2] Variety called it "An often breathtakingly original meld of road movie, lesbian love story, psychodrama and black comedy".