Billy and Rachel’s romance begins in the shadow of a stranger’s suicide attempt, setting the stage for a love story far from ordinary. Their whirlwind relationship leads to marriage, a shared home, and dreams for the future — until unsettling scratching beneath the floorboards reveals a rat infestation. As the vermin spread, the life they’ve built starts to crumble, exposing the cracks in their relationship and the darkness within themselves. Boundaries between love and madness blur as they spiral into a violent descent marked by grief, obsession, and compulsion. Vermin is a pitch-black drama about the secrets we bury, the horrors that resurface, and what’s left when everything has been stripped away.