"The afore-mentioned dreams that afflict hero James Olson (who had just starred in Hammer's goofy 'Space Western' MOON ZERO TWO {1969}) do rather give away the final twist (much-abused over the years), especially with the repetition but, then, the plot does incorporate a number of red herrings which makes one think the narrative will be going a certain way only for it to change direction before long"
