Picture the scene. It's a rainy Autumn night in April 1970 in the affluent suburb of Constantia, Cape Town. A small desk is set for dinner in the large well-appointed study of a palatial mansion. There are signs of a meal interrupted, a chair overturned, and the outstretched body of a beautiful young woman, Susan Cohen, lays outstretched on the plush carpet. (thetvdb.com)