A television play in four parts by Duncan Ross
[Starring] Andrew Osborn, Lana Morris
with Daphne Anderson, Richard Pearson, Patrick Troughton, Robert Urquhart

It seems that Miss Le Roy, the girl who was found murdered in her room at the small seaside hotel at Seabridge, attracted a certain amount of attention during her brief stay. Apart from hiring a boat and going out with Bob Dyson for four hours one night, she was also, according to rumour, more friendly with taxi-driver Charlie Morris than he is prepared to admit. And what exactly is Professor Dodds doing with those powerful binoculars of his? And what was the story behind Miss Le Roy's brother being found drowned in the Thames some time before her own death?