There's this mysterious vine growing at my wife's grandfather's home that I can't identify. Its tall enough to have climbed up the fence and made its way over. I've included various images taken of the plant. The fruit is like a reddish purple fig/guava looking thing. When I cut it open there's no real scent on it, at least nothing that's pleasing and desirable for triggering an eating reflex.
What could this strange vine be?