A troubled father and son embark on a night fishing trip that unravels dark family secrets and local legends of deadly sea creatures. The line between truth and superstition blurs, culminating in a chilling realization beneath the waves.

After twenty-seven years of silence, a long-avoided reunion forces a father and son to confront the damage left behind, brought to life by BAFTA-winning Stuart Brennan and breakout newcomer Finley Rowland.