Once you have an experience almost fatal in a lake, Madison (Michelle Mylett) remains an extreme hydrophobia. It got so bad that it is not able to attend the wedding of her best friend, Hannah (Caroline Korycki) because of rain. Madison is convinced that a sinister figure known as Drownsman (Ry Barrett) will attract world and will kill them. In an attempt to help her friends Madison is trying to implement a seance to contact the being in question and find that it is haunted by Sebastian Donner, a serial killer who loves to listen to the heartbeat of his victims when they died slowly. However, the group soon finds, in an attempt to help a Madison, Drownsman has noticed them and started to “collect” in turn.