Initially, Zaroff is the perfect host. But then the truth comes out: he's actually the perfect psychopath. After getting bored hunting animals, he's begun luring people to his island with a cute little trick involving misleading ships into thinking there’s a channel where there isn’t one
He offers Rainsford the exact same choice. Out the chateau gates for old Rainsford, who pulls out all the stops: the Malay mancatcher (sounds like character from The Hangover VIII), a Burmese Tiger pit, and a tricky little mechanism using a sapling and a knife.
This last one takes out Ivan, and Raisnford also manages to kill one of Zaroff’s precious hounds. But then, with nowhere left to go, Rainsford hurls himself over a cliff into the stormy waters below. Zaroff figures that’s the end of that and goes home to bed.