Skullduggery (1983, Ota Richter)
Well, it's got a theme song for a start.
The hilarious "historical" prologue just sets up the madness to follow.
Cut to modern day and wouldn't you know it, they are playing those gateway RPGs! Satan must be close to hand prithee
After a visit to a fortune teller ends badly, we end up in hospital (as the female lead is a nurse haha) for shenanigans. A hoot. Not one I remember seeing at the time, which is a shame as it's a lot of fun, the supporting cast is full of oddball characters etc.
REWATCH!!