When his daughter Linda's father-in-law Haken disappears the newly reinstated Wallander assists detective Yttenberg in trying to find him. Learning that Haken had been a submariner thirty years earlier Wallander believes he was keeping secrets relating to that period of his life from his wife Louise, another secret being Haken's severely disabled daughter Signe, whom he would visit surreptitiously. following a suspicious death Wallander's own dementia begins to slowly kick in but he still unearths events from the 1980s when Haken was possibly leading a double life. In locating the missing man Wallander discovers the truth about these accusations and is able to close his very last case.
—don @ minifie-1