Pamela Franklin and Michele Dotrice are British nurses on a cycling holiday in France. The two women have a disagreement and Franklin splits, while Dotrice stays behind. When Franklin returns a few minutes later to the spot where she left her friend, she discovers that the woman has mysteriously vanished. As if that weren't distressing enough, she learns from the local people that the site where her friend disappeared from is the same place where a lady tourist was found murdered a few years before. Moody, suspenseful British thriller with good performances, particularly by Franklin as the worried heroine.