Jane Asher

Roger Corman classic about a European prince who terrorises the local peasantry while using his castle as a refuge against the "Red Death" plague that stalks the land. 

Following the death of their friend, two girls in their late twenties embark on a road trip to spread his ashes. Seph and Alex take turns driving. Dan is in the glove compartment, in tupperware, decreasing in volume as the trip progresses.