Yann Lazarrec seems to be a normal man. He's a pharmacist who soothes mankind with his potions and fights to protect the earth against the polluters who abuse it. Lazarrec is full of good intentions but we know that the road to hell is also paved with them. It is precisely there, in hell, that the pharmacist spends most of his time. He has quite simply gone mad.
In the shadows of his laboratory, he secretly mixes poisons to kill the polluters. Unbeknown to all, the ecological dreamer, the dedicated pharmacist has become a serial killer.