Days before embarking on a trip of a lifetime across the Atlantic Ocean with a couple of friends on a Mexican boat, Marie, a french woman, receives the news that she will have to stay all by herself at a marina during the government-imposed lockdown amidst the coronavirus pandemic. In what would seem to be a time of tranquility and peace, she begins to sense an invisible presence that will evoke distressing memories and will force her to face her own fears and inner nature.