After 37 years, Amsterdam’s iconic canals are once more stained with a sinister hue. Tara Lee, a determined and ambitious young detective with the Amsterdam police, finds herself at the center of a series of chilling and gruesome events along the waterways. To unravel the mystery, she seeks the expertise of Visser, a seasoned retired detective renowned for catching a serial killer who once terrorized the same scenic canals. Together, they confront a formidable foe who appears to have almost supernatural abilities, pushing them to their limits in a race against time to uncover the truth.