Lewis gloriously trascends the minor drawbacks of his budget and assigned cast (while Bond is excellent, Cotten’s age and Lindfors’ accent are unhelpful anomalies), employing his unique visual intelligence and compositional sense to lend the script’s acuity a metaphorical impact and a characteristically violent, headlong impetus. (…) Lewis’ noir-ish leanings aren’t best served by the exigencies of day-for-night shooting, but he carries off a couple of wonderful moments of shadow-play, and casts an appropriate pall of interior darkness at the moment when Aleta identifies the true Halliday brand on Daniel’s hate-filled features.

Paul Taylor, Monthly Film Bulletin, April 1980