A Bay of Blood (1971)
"Reazione a catena" (original title)

R  |   |  Horror, Mystery, Thriller  |  3 May 1972 (USA)
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An elderly heiress is killed by her husband who wants control of her fortunes. What ensues is an all-out murder spree as relatives and friends attempt to reduce the inheritance playing ... See full summary »



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Complete credited cast:
Claudio Camaso ...
Simon (as Claudio Volonté)
Anna Maria Rosati ...
Laura (as Anna M. Rosati)
Chris Avram ...
Leopoldo Trieste ...
Laura Betti ...
Brigitte Skay ...
Paola Montenero ...
Denise (as Paola Rubens)
Guido Boccaccini ...
Roberto Bonanni ...
Giovanni Nuvoletti ...


An elderly heiress is killed by her husband who wants control of her fortunes. What ensues is an all-out murder spree as relatives and friends attempt to reduce the inheritance playing field, complicated by some teenagers who decide to camp out in a dilapidated building on the estate. Written by Ed Sutton <esutton@mindspring.com>

Plot Summary | Plot Synopsis


Terror Flows Deep See more »


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Parents Guide:





Release Date:

3 May 1972 (USA)  »

Also Known As:

A Bay of Blood  »

Filming Locations:


Company Credits

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Technical Specs


| (cut)

Sound Mix:



Aspect Ratio:

1.85 : 1
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Did You Know?


This was actually shot on a piece of private property with few trees, but because of Mario Bava's camerawork it appears to have been shot in a large, wooded area. See more »


The Count is stabbed repeatedly in his back and then he falls on his back and dies. When the killer is dragging him away, there should be a blood trail leading from The Countess to the door. See more »


Simon: Man should live and let live, and without any interfering.
Paolo: Even that poor squid was free once, Simon, eh? I study Coleopters because I love them.
Simon: Sure, but the squirming little creatures still end up under your microscope. Yeah, he's dead alright but at least I eat my squid. But I don't kill as a hobby like you do.
Paolo: Good Lord, Simon; you make me feel like a murderer.
Simon: I'm not saying that, Mr. Fossati; but if you kill for killing's sake - you become a monster.
Paolo: But, man isn't an insect, my dear ...
See more »


Referenced in Friday the 13th (1980) See more »

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User Reviews

When Nobody is Innocent
11 June 2005 | by (Rio de Janeiro, Brazil) – See all my reviews

A handicapped and wealthy countess, who owns the lands of a disputed bay, is hanged by her husband and he is immediately killed. The crime scene is forged to simulate a suicide of the old woman. Later, two young couples are murdered in the bay. The inheritors of the fortune of the countess want the possession of the place and kill each other, in a bloodshed bath in the area.

"Reazione a Catena" is a gory slash movie with a different characteristic: there is no serial killer, but almost a chain reaction of murders. The deaths are motivated by the greed of different persons, and their motives are based on the interest of the civil construction in the ecological area, and the reluctance of the elder countess in selling her property. None of the character is innocent, except the two young couples that arrive in wrong the place for fun. The camera, with many closes and movements, is quite different. The black humor is very sharp; most of the deaths are very original and the conclusion is silly. The copy of the Brazilian VHS is a little dark, but it is watchable. My vote is seven.

Title (Brazil): "Banho de Sangue" ("Blood Bath")

Note: On 06 July 2009, I saw this movie again on DVD.

16 of 24 people found this review helpful.  Was this review helpful to you?

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