I enjoyed this. Very much of its time, though actually a tad dated in 1964 maybe - it's adapted from a mass market crime thriller novel - it's all a bit silly and stagey, like a page-turner novel or penny dreadful, but satisfies in its way.
The cast is interesting. The actress Isa Miranda about 57 years old here was a famous Italian actress, her career much helped by marrying an Italian film producer/director.
Dan Duryea an American actor in loads of popular post-war films and I liked the post-war connection with this exGI American in Britain.
Most interesting is young cop played by Barry Warren, RADA-trained actor who was in Lawrence of Arabia and various 1960s films then stopped acting. Sources state he had a sex change about 5 years before his death age 60 in 1994. "According to Sarah Miles' memoirs, Warren underwent a sex change operation and lived for five years as Claire Warren before her death in 1994"
All a bit hysterical and stagey, lots of unlikely coincidences to up the jeopardy and keep up the excitement - a B-movie really.
Gets a PG on Talking Pictures - in our prissy pofaced priggish hysterical age, especially involving the unshown death of a child (NOT a spoiler as it's in the description). We like in a New Puritan Age of Woke where universities stick socalled trigger warnings on old bones for archaeology students, and any old play with violence, possible sexism/racism etc gets flagged. Tiresome...
3.5 stars rounded up. A curiosity.