After being shipwrecked on a desert island two guys and a girl are the only surivivors.
Since there's really nothing much to do all day besides eating and sleeping they end up just having sex.
Eventually the girls gets sick and dies. The two men don't know what to do with themselves anymore so they just keep on having sex. After a few days of sex, they both feel a huge sense of guilt about what they've been doing .........
so they bury her.