I'm with everyone else who says this is one of the scariest movies ever made. I was 12 years old in January of 75 when this aired and yes, the movie lulls you into a false state of relaxation as the supernatural events are all debunked. After the last commercial, I was all set for the happy ending and the credits roll, then it was off to bed for another day of 7th grade. No one was conditioned for twist endings back then, especially in a TV movie, and then the last 10 minutes terrified me. Yes, terrified, I'm not kidding. I think I slept in my parents room the next week and when they ran it again in the summer of 75 or 76, I would shut the TV off when the previews came on. As a lot of 10 to 15 year olds back then who are all grown up now, it lives on in my memory as a classic.

This little made for TV film released in 1975 has the best plot twist I have ever seen in a movie. Just when you think you have it figured out ... Whamo!!The setting is the Bermuda Triangle on a small power sailboat that is drifting in distress. Doug McClure plays the rational and in control coast guard pilot and Kim Novak plays a temptress on the vessel that explains what has happened. The dialogue from another coast guard officer over the radio and on the ship introduces the plot twist: "That is not what we found" makes you see everything differently. Great writing and acting. Well worth the time to find on YouTube and watch. I love this little jewel.

Two airplane pilots are sent to respond to a call for help deep in the middle of Satan's Triangle.They find an abandoned boat adrift with several bodies and just one survivor(Kim Novak).The frightened woman tells Lieutenant Haig(Doug McClure) the details of a dark and frightening voyage into terror as the two spend the night together on the vessel.Unfortunately the sinister tale of Satan's Triangle is linked to the mysterious priest supposedly dead on board."Satan's Triangle" is an eerie gem of early 70's TV-horror.When I was a kid I was fascinated by the mystery of Bermuda Triangle and this film links it with Satanic force.8 triangles out of 10.

This movie is by far the scariest movie I saw as a kid. Me and my brother still talk about it..I was 9 when I saw it..I am in my 40's now!Some have referred to Kim Novak's sinister smile, and one referred to her chuckle. I remember it as the sinister smile and then a sinister laugh that got louder and louder as the pilot looked on in shock and fought with the controls. What an incredible twist ending!What an amazing thing this director was able to do with this lasting impression on us! I can't believe it was so hard for me to find the name of this movie and this discussion on it! I am glad I found it and am going to try hard to get a copy of it.