Leeches (2019) Characters, Setting & Themes Explained

The story takes place at a college campus, primarily centered around the campus swimming pool where the main action unfolds. There is also a local lake where the swim team goes on a day trip, which serves as an early setting before the crisis escalates at the pool.

• college campus
• swimming pool
• lake
• setting
• location

The leeches undergo a dangerous mutation caused by steroids and unchecked scientific experimentation. The film explores how performance-enhancing drugs blend with biology, creating monstrous creatures that turn against humans.

• leeches
• mutation
• steroids
• science
• experimentation
• body horror

The Science Ethics theme highlights the dangers of blurring performance enhancement with biology. The film uses body horror to expose the costs of laboratory hubris run amok, showing what happens when scientific boundaries are pushed too far without moral consideration.

• science ethics
• steroids
• experimentation
• body horror
• hubris
• biology

Stjepan Stroh is the swim team coach, depicted as an autocratic leader whose leadership becomes a catalyst for fear and chaos after he is infected by a leech. He embodies a dangerous blend of authority and illness as the crisis unfolds.

• Stjepan Stroh
• coach
• swim team leader
• authority
• infection

The Survival theme centers on a tight-knit group of swimmers who must improvise a plan to outsmart a predator that has learned to thrive on steroids. The story examines risk, resourcefulness, and the ethical dilemmas of sacrificing others for the few who remain.

• survival
• swimming team
• plan
• sacrifice
• loyalty
• steroids

The Consequences theme shows that attempting to control nature backfires in deadly ways. The plan to kill the leeches leads to deaths among teammates and a tense standoff with the infected coach, revealing that the cycle of experimentation continues despite the conflict.

• consequences
• deaths
• nature
• control
• cycle
• experimentation

The core group includes Petar Mirić and Dragan Mišović as team members affected by the steroid-enhanced training and ensuing crisis, along with Vesna as another swimmer entangled in the plan and its consequences. They are supported by characters like Svetlana, the girlfriend who becomes involved in the survival plan.

• Petar Mirić
• Dragan Mišović
• Vesna
• swim team
• swimmers

Leeches employs body horror to visualize the physical and moral costs of the leech mutation. The grotesque transformation of the coach and the graphic deaths of team members emphasize the film's dark tone and the deadly consequences of scientific hubris.

• body horror
• transformation
• graphic deaths
• grotesque
• horror

The campus swimming pool becomes the makeshift arena for the climactic battle against the mutated leeches. The team devises a plan to electrocute the leeches at the pool, turning the training facility into a deadly battleground.

• swimming pool
• electrocution
• battle
• climax
• plan

The ending reveals a lingering threat: the true architect of the disaster is one of the survivors, suggesting the cycle of experimentation continues. This creates a sad and bleak conclusion where victory is only partial and the horror persists.

• ending
• architect
• survivor
• cycle
• threat
• experiment