Cycle of Nothing

There is someone trapped. They don't know where they are, how they got there, how long they've been there, or how long they'll still be there. They don't know anything about them self: their name, gender, age, appearance, absolutely nothing. This may seem absolutely absurd, but if you were in their position, you would understand. Their existence is an endless cycle of trying to discover who, or what, they really are. But most significant of all: They're not alone.