"Undercurrent" is a surprisingly effective mystery/"chick flick," given elements that could have sunk a lesser effort. For example:
o Dr. Bangs gives away one of the movie's secrets VERY early in the plot (Before Hepburn marries Taylor) o The behavior of some of the supporting players (for example, Mr. Warmly's first scene) aren't really consistent with the denouement o Katherine Hepburn, at 39, is not an altogether convincing object of desire for her younger costars o While Robert Taylor gives a great performance, the first hints of his instability come too early in the film o Third billed Robert Mitchum has about five minutes screen time and his character has no part of the physical action.
Perhaps, if it were not for the tremendous skill with which "Undercurrent" has been acted and directed, these apparent shortcomings might have mattered more. Certainly, casting Taylor and Mitchum against type was a stroke of genius. Further, the more one watches Katherine Hepburn's brilliant performance, the more one realizes "Undercurrent" would have been far less successful using a more "age appropriate" actress, unless she were equally skilled (Olivia De Havilland? Joan Bennett?). However, in addition to brilliant acting, Hepburn carries a cool, self-assured demeanor as part of her persona; which makes her apparent helplessness later in the film much more suspenseful, if not downright terrifying. Given that Hepburn is in virtually every scene, it's really Hepburn's movie and she doesn't disappoint.
I give "Undercurrent" a "7".
