On a distant Greek island, former hitwoman Julie finds herself in a tense reunion with her long-estranged son, Edward, who has traveled from England. Edward, seeking answers about recent revelations concerning his father, struggles to confront his emotionally unavailable mother. However, just as he finds the opportunity to broach the subject, their lives are thrown into chaos when Julie’s perilous history resurfaces. This forces them to escape the island and embark on a perilous journey together.