Dennis Cooper, a humble and bumbling cooper’s apprentice, finds his world turned upside down when his father dies. Craving a better life and to win the heart of his beloved Griselda, he ventures to the city. Upon arrival, he discovers that the kingdom is plagued by a monstrous creature terrorizing the land. The brutish and narrow-minded society views incompetence as a curse, so Dennis faces numerous misunderstandings and misadventures as he tries to make his way. The king offers a reward for slaying the beast, leading Dennis into a series of misadventures involving greedy merchants, delusional knights, and fanatical royalty. His well-meaning but clumsy nature only complicates matters further.

As Dennis stumbles through one chaotic situation after another, he inadvertently gets entangled in a grand quest. Unintentionally proving himself more capable than anyone expected, he encounters various bizarre characters who challenge his perceptions of heroism and destiny. The climax unfolds in a chaotic confrontation with the nefarious creature threatening the kingdom, proving that courage and fortune can come from the most unlikely places. Dennis's journey showcases both his personal growth and the absurdities of medieval society, culminating in a resolution that intertwines fate, bravery, and unexpected twists.