I doubt anyone can get this.

[Svengoolie 3]

A movie from the 60's I believe.  I think 2 or 3 guys are summoned to a castle  on an island.  On the boat to it the cranky captain tries to drop them overboard to the bottom of the sea.  The castle has an evil woman, a weird robot Android with half it's fade damaged, a chamber that fills with acid vapor that turns bodied into skeletons and makes skeletons disappear. The robot with the messed up fade is stopped with a big laser on a table.


That's all I remember,  a few fragments.

Good luck with this one...

[RCMerchant]

Possibly CASTLE OF EVIL .

https://www.imdb.com/title/tt0060219/

[Svengoolie 3]

Damn, RCM! I should have known....