Plants in the majority seem to us harmless, but some can sting if you touch them. Everyone knows, for example, that the nettle painfully bites, but in the history of Venomus Plants you will learn about completely different plants. Their breeding was done by the learned botanist Henry in his greenhouse. He wants to bring out a new sort of useful flower, and eventually got a carnivore predator, which began to multiply rapidly. The scientist's family was forced to leave the house, it became unsafe, and Henry stayed to create a solution that would kill the plants. Help him find the right ingredients, he already knows what he needs.