After being shrunk to the size of a bug, Marcel discovers a marvellous world beyond his imagination, which he soon finds out to be fraught with life-threatening dangers. He teams up with a motley crew of insects composed of a funny and insatiable inchworm, a griping rhinoceros beetle and a haughty honeybee, each of which harbours traits that mirror parts of his own character. The inchworm craves to become more colourful than Mother Nature had planned. The bee is prepared to divulge colony information just to improve her standing in the nest. The aging beetle joins the crew in the hope that royal jelly will rejuvenate him so echoing Marcel’s dread of death and the unknown.
Throughout his extraordinary expedition of self-discovery he undergoes strange and horrifying metamorphoses. A necessary evil that gives him physical strength to face truths and overcome flaws.