In this Bert I. Gordon movie, a concert pianist (Richard Carlson), staying at a lighthouse in preparation of marrying his new bride, is visited by his ex girlfriend, who still wants him. They have a confrontation up at the top of the lighthouse, she goes through the railing but manages to somehow hold on. She reaches out for him to grab her and pull her to safety but he offers no assistance. She falls to her death, to the rocks below. For the remainder of the movie he's haunted by this woman. His bride-to-be's young daughter discovers what he did--and he goes to kill her to keep his secret. This is when the movie fell apart for me--it seems like a huge leap to not help someone as opposed to deliberately murdering a child. Still, it's an entertaining, over-acted movie from the mid-60's.