Story Structure — 5 Plot Phases
Steroid-Infused Daytrip
The college swim team relies on anabolic steroids for performance. During a lake trip, they accidentally collect leeches that begin feeding on their steroid-laced blood.
Key Events
-
Steroid Regimen Initiation — Swimmers begin taking performance-enhancing drugs. Location: Locker Room
-
Lake Daytrip Departure — Team travels to a lake for a recreational daytrip. Location: Local Lake
-
Leech Collection — A couple of members accidentally pick up leeches. Location: Lake Shore
-
Steroid Blood Feeding — Leeches attach and feed on steroid-rich blood. Location: Lake
-
Steroid Aftermath — Background context of steroid use driving the plot. Location: Locker Room
Drain-Born Monsters
The leeches wash into campus showers, mutate to enormous sizes, and begin hunting the team. Several swimmers and an administrator fall victim to the growing threat.
Key Events
-
Steroid Blood Feeding — Leeches attach and feed on steroid-rich blood. Location: Lake
-
Drain Mutation — Leeches wash down drains and grow to enormous size. Location: Shower Drain
-
Campus Return Hunt — Giant leeches return to feed on the team. Location: Campus Showers
-
Teammate Casualties — Several team members fall victim to the leeches. Location: Campus
-
Administrator Death — A college administrator is killed by the leeches. Location: College Building
-
Survivor Regroup — Few survivors regroup after the initial massacre. Location: Safe Room
-
Drain Discovery — Team notices leeches thriving in the drainage system. Location: Shower Room
The Pool Counterattack
The few survivors devise a desperate plan to lure the leeches into the campus pool. They prepare to electrify the water while using a teammate as bait to draw the predators out.
Key Events
-
Survivor Regroup — Few survivors regroup after the initial massacre. Location: Safe Room
-
Counterattack Strategy — Survivors devise a plan to lure and kill the leeches. Location: Safe Room
-
Bait Volunteer — One swimmer volunteers to act as bait in the pool. Location: Campus Pool
-
Pool Electrification Prep — Team prepares to electrocute the leeches in the water. Location: Campus Pool
-
Coach Infection Reveal — It is revealed the coach has been infected by a leech. Location: Coaching Office
-
Coach Assault — Infected coach attacks the group, disrupting the plan. Location: Pool Deck
Infected Betrayal
The team coach, secretly infected, attacks the group and delays the electrification. The bait swimmer is killed, but the survivors eventually subdue the coach and activate the switch.
Key Events
-
Coach Assault — Infected coach attacks the group, disrupting the plan. Location: Pool Deck
-
Plan Delayed — Coach's attack delays the switch activation. Location: Pool Deck
-
Bait Sacrifice — Leeches kill the bait swimmer before the switch is thrown. Location: Campus Pool
-
Coach Subdued — Survivors manage to subdue the infected coach. Location: Pool Deck
-
Switch Activation — The activation switch is finally flipped. Location: Pool Deck
-
Leeches Fried — Electrocution kills all giant leeches in the pool. Location: Campus Pool
Breeding Stock Legacy
With the leeches fried, the immediate crisis ends. However, a surviving swimmer reveals they engineered the creatures and still possess breeding stock, leaving a dark legacy.
Key Events
-
Leeches Fried — Electrocution kills all giant leeches in the pool. Location: Campus Pool
-
Threat Neutralized — The immediate leech threat is successfully eliminated. Location: Campus Pool
-
Creator Reveal — A survivor is shown to have engineered the leeches. Location: Lab Storage
-
Breeding Stock Discovery — The mastermind retains leech breeding stock for future use. Location: Hidden Facility
-
Open Ending — Film ends with the implication of future leech outbreaks. Location: Unknown
When a crop of doped-up athletes from the Lakecrest College swim team dive into the campus lake to blow off some steam, the bloodsucking leeches below the surface undergo a stunning transformation. After ingesting small amounts of the swimmers' steroid-laced blood, the slimy creatures grow to unusual sizes and set out to sink their teeth into an unsuspecting student population.