Dagmar Havlová Veškrnová, Pavel Zedníček, Žaneta Fuchsová, Milan Šimáček, Miroslav Macháček, Josef Bláha, Přemysl Kočí, Jaroslav Moučka, Vlastimil Brodský, Boris Rösner, Jan Kanyza, Kateřina Lojdová, Oldřich Kaiser, Nina Divíšková, Vladimír Kratina
While on vacation with their bickering parents, young Eva and her little brother Johnny find in a polluted lake two strange friendly sentient octopuses made of strange material that attracts electricity. They take them as pets.