Secrets in Amsterdam (S04E03)

Van der Valk and his team are summoned to investigate the mysterious death of a scientist who was on the verge of a groundbreaking cancer treatment. To assist with the case, Van der Valk’s former lover, Kalie Tenkers, reappears, eager to help the team uncover the truth behind the scientist's murder and explore any possible connections to wealthy pharmaceutical magnate Freddie Klink.