I honestly can't believe that this film isn't more highly rated. Claude Chabrol could be described as something like a French Alfred Hitchcock, and while this film is only the second one of his that I've seen (the first being Le Boucher),I can already see that this guy is something special just on the strength of these two films. The film is a French and Canadian co-production, and takes place in Canada. The cast is made up of British and Canadian stars and the high quality performances bode well with the rest of the film; most of which is high quality also. The film is a murder mystery and begins when a young girl covered in blood is brought into a police station. After being questioned by Inspector Carella, it emerges that the young girl, Patricia, and her sister Muriel were attacked by a man who killed the sister and only just allowed Patricia to flee. However, as the investigation goes on, Patricia goes back to the station to give new evidence, which reveals a far more shocking identity to the murderer.

The performances in this film are excellent. Donald Sutherland is subdued as usual, but he suits the role he's given here very well and I wouldn't hesitate to name his performance in Blood Relatives as one of his very best. The film also features supporting turns from British stars Donald Pleasance and David Hemmings who both give good turns; Pleasance in particular who shows just how great an actor he can be and highlights what a shame it is that he went on to waste himself in Halloween films. The unknown Aude Landry also gives a great performance in her role as Patricia. The movie is very mysterious for the first hour and really keeps the audience hooked. When Inspector Carella discovers Muriel's diary, the film turns into more of a drama in which the girl's last actions are shown; and while this section of the film is not as good as what went before it, it's still interesting and leads into a great twist at the end! Overall, Blood Relatives is a great film that really deserves to be better seen. Le Boucher is a better known effort from Chabrol, but for my money this is at least as good! Highly recommended viewing.

Evocatively directed and slickly photographed psychological mystery thriller with an exceptional lead performance by a sombre Donald Sutherland, and potent support roles from Donald Pleasence and David Hemming. The material decides to keep it all glum, and moves from the investigation period into the back-story of the victim. The seldom, and quite sullen nature of investigation pulled me in, but when it flashback to the victim's side showing her final days weren't as compelling, and became somewhat stodgy and stock-like. While the script is strongly detailed and to a certain degree complex in stringing us along, however the final and surprising revelation should have been more bone-jarring and it's not helped out by its sloppy execution. Howard Blake's music score has an emotional sting to its cues that simply linger, and director Claude Chabrol's capable handling (well for most part) has a strong stylistic and tight manner, which gets the best out of moody locations and flexible cast. The young faces Lisa Langlois and Aude Landry do an incredibly good job as well.

When Patricia Newell is attacked after witnessing her cousin's murder,Detective Carrella searches the city for her killer.Identifying the murderer after an intensive manhunt,Patricia is sent to live with relatives in the country.For Carrella the case is closed...or is it?"Blood Relatives" is an overlooked masterpiece.Donald Sutherland plays a cop and it's nice to see Donald Pleasance in a small role as a child molester.The conclusion is pretty disturbing.Still "Blood Relatives" is more of a mystery than a horror film,so fans of gore will be disappointed.A must-see for fans of old-fashioned mystery movies.9 out of 10.