Watched this as part of BFI's Kurosawa Crime Collection. It states on the packaging that it's 105 mins, but ran for 145. Every film listing has it running at a different length. Amazon list it at 135m, IMDB at 151m and Radio Times on-line at 127m. Whichever way you look at it, it's a pretty long feature.
There's plenty of twists and turns to fill that length and whilst one thinks one's keeping up with the plot, it twists again. I couldn't help muttering "leave it at that!" as it turns yet another corner.
Toshiro Mifune, as always, gets top billing but he's not the main character. It's generally older actors, one being the chief inspector in Kurosawa's earlier Stray Dog, that play various businessmen and corporate bigwigs. The corruption and legal wranglings seemed largely feasible and often fascinating. At most times it's engaging as well as involving and thus enjoyable. It did remind of the sort of U.S dramas of the '50s, where say, Henry Fonda would have starred.
I understand that The Bad Sleep Well flopped in its native country and whilst accomplished and well directed (& requiring 5 screenwriters), this departure from his usual fare was a mistake for Kurosawa. I would really have liked to award 3 & three quarter stars.