Harlequin (1984)

In this modern-day version of the Rasputin story, David Hemmings plays an up-and-coming senator, Nick Rast, whose young son is terminally ill with leukaemia. A mysterious faith healer, Gregory Wolfe, appears and seems to cure the boy. Rast's wife Sandy falls in love with Wolfe, but the powerful interests behind Rast's career, represented by geriatric monster Doc Wheelan are less happy with events.