This film was full of veteran actors, Richard Basehart,(Roy Martin/Roy Morgan; Scott Brady(Sgt.Marty Brennan) brother of former film star,Lawrence Tierney "Dillinger". Jack Webb, was very young and thin in this picture, he was married to Julie London who starred in the film,"The Red House" with Edward G. Robinson. Jack Webb used all the equipment they had in the 1948's and even had some good CSI theories as a Crime Lab expert. This 1948 keeps you spellbound and keeps you guessing throughout the entire picture. The black and white film makes it even more chilling and mysterious. View it if you can, you won't be sorry!