Like a Sidney Sheldon novel, The Tower and its relentless sequels have more plot life in their bones than they theoretically should have.  Based on the cooly-acclaimed techno thriller, Silver, what prevents this soaper about a high-rise serial killer from splattering into the streets like its victims is its dazzling array of women and anal. Tally seven blistering backdoor scenes in The Tower 3 of which sex are d.p.'s (with some rare frontals), allowing the indoor record to be set for the most number of irrelevant second banana stage entrances in the history of either adult cinema or vaudeville.

Aliza, who meets a grim end, but not before she gets royally fucked there, tells her tale from the grave -- during the course of which comes a barrage of blithe "it's wonderful to come in the mouth of a police woman" chitchat.  This punctuates spirited (and lengthy) sphincter swizzling as well as rapaciously delivered cock sucking/ball licking. Most of the action centers around tenants in hotel rooms, not the most visually arresting of motifs to be sure, but is amended, handsomely, by a clinically-handled camera and the frenzied sexual erudition of the ladies.

Anal delivered in the side-saddle position might be the only acceptable visual artifice as witnessed in back-to-back scenes when a blonde police investigator gets complimented on the Olympic size of her precinct and when Louis XIV-tressed Barbara's partner slides jauntily into her palace of Versailles.

For the morose escapade that it could be, The Tower 3 quietly slips into unintentional burlesque but maintains its dignity long enough to count as one of adult's searing d.p. extravaganzas.