Tanya (working officially as a simply nurse) is the only starting index for the police to find the brain of a large-scale criminal operation. Lt. Frank Drebin (played by Leslie Nielsen) is sent to approach Tanya and try to collect any information who could permit to find her accomplices.
Problem: Frank has previously met the ultra-busted blonde - long time ago - but she could easily recognise him... even if she's a real blonde (with a real blonde brain & memory)!
Frank anyway embarks on this mission more difficult than it seems...
Tanya apparently enjoys eternal youth, for she looked exactly the same in the late 1970s (according to a flashback in the movie) as she did in the early '90s. She would then be about 40 years old in the "present day," but still looks 25.
Despite apparently being a dumb blonde, Tanya has an unusually complex personality. While she willingly helps criminals - and deranged, violent criminals at that - she herself is not murderous and lacks the bullying characteristics of the other members of the Dylan gang. When Frank goes undercover in the gang as the serial killer "Slasher McGurk," Tanya becomes fond of "Slasher" and appears to be genuinely kind to him. For all that, though, Tanya can be unbelievably cruel. When Frank's wife, Jane, sees him being seduced by Tanya, she tearfully demands to know how Tanya could have done such a thing; Tanya who doesn't know Jane is Frank's wife is not at all sorry and smugly tells her, "You just stick your tongue down his throat as far as you can."
To her credit, Tanya does betray the gang in the end and help to save the lives of hundreds of people. She never seems TRULY remorseful, however, so it could have been true that she simply had fallen for Frank and believed he would love her in return only if she were on the right side of the law.
However Frank turned her down when he saw to his horror that she had a male attachment. It is unknown what her fate was afterwards, but is assumed that she was arrested for helping Rocko with his crimes, possibly with a shorter sentence because she helped the police..