Sanna (Nathalie Bloom) a rocker girl who is stuck in her old high school life with her boyfriend Micke (Lars Sandberg) who rather hangs out with his friend Latino (Robert Isberg) than spends time with her. Sanna works as a personal assistant to Lisbeth (Anna Almroth). Lisbeth's son Mårten (Michael Hamory) is a nerd who has a crush on Sanna. One day Mårten has an accident and everything changes.

After the mysterious death of her husband, a woman struggles with her sanity as she sets out to prove that the entity known as the Banshee is responsible.

Art House meets Film Noir. A young policeman struggles with his conscience and the constant fear of being discovered to have committed the murder he is about to investigate. A fatal car accident one night for which he alone is responsible puts even more pressure on him. What should he do? Admit to it or suppress the guilt? Where to turn? Memories of a Lake takes place on the borderline where the realm of the subconscious meets the world of everyday reality.