This was an incredible sleeper that was hyped as some type of spooky, mysterious story regarding a UFO encounter. Instead it was a boring, painfully slow yarn lacking any special effects or visual excitement. The script called for the characters to talk about something in a lab; then go to a wilderness location, sit down and talk about something; then go to another location, sit down and talk about something; then go to another location, sit down and talk some more; then maybe decide to sit down in a forest location and rehash what they just talked about. Had the dialogue been any good or even slightly stimulating, then perhaps this would have been OK; but this dull script felt as though it had been written in haste or just ad-libbed by the actors in order to get it released quickly to take advantage of the UFO craze of the seventies.
By the time of the "climactic" final scene, the audience expected to maybe finally have a glimpse of some spectacular space craft relic or alien body part, but instead all that was presented was one character shouting "for god's sake" numerous times at another who decides to follow some "imaginative call" to go into a lake believed to be a UFO crash site. The ultimate fates of these two characters are not discussed here so as to avoid "spoiling" this for anyone desperate enough to sit through the whole thing; but suffice it to say, those still awake in the audience by this point yet again were not treated to anything interesting.
For a very good reason, this is a film probably never to be found on video.