Sven, 12, knows monsters don't live under the bed. But what is this glowing ball that makes such strange sounds? Looking under the bed, Sven finds an alien who looks like a living hologram. To survive, he needs clean energy and fresh vegetables and fruits. All this is a shortage in the world of electrical appliances, canned goods and semi-finished products.
But Sven faces an even more difficult task: he has to team up with Lisa, with whom no one communicates at school because she has another alien.
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