Van der Valk

When a man confesses to the double murder of his wife and her lover it seems an open and shut case; but as one part after another of the man's story doesn't check out, van der Valk realizes he is dealing with something far more complicated.

Van Teeseling, a wealthy and influential banker, is found unconscious in his car on the beach. He tells police that the night before he and his wife went for a drunken midnight swim. His wife drowned while he barely escaped with his life. Van der Valk's nose is twitching, but he is put under pressure not to pursue the case. When Kroon discovers than van Teeseling is a former Olympic swimmer, van der Valk is convinced that he staged the incident to get rid of his wife. Van der Valk is determined to use any means to ensure that justice is done.

Van der Valk and Arlette are subjected to threats on their lives. Who is the hidden enemy?