It appears that a real-life “ghost boat” was discovered in Japan recently and it was carrying five corpses and two human heads. The damaged boat, which was painted with Korean lettering, ended up beached Friday on Sado Island, where authorities discovered a bunch of “partially skeletonized” remains. It’s unclear if the decapitated heads belonged to the corpses. There are some reports saying that the boat might belong to North Korean spies while others think it's another fishing vessel with the remains of those who died from exposure and starvation from the winter months.
Source: HERE