A stunningly attractive sciencebrain lady invents some magic eyedrops that turn your brain into a full immersion virtual reality set. A bit like the wire hats in Strange Days, but slightly more silly.
Anyway, shady corporate dealings mean she finds herself sentenced to a year in mind prison becoming a guinea pig for her own invention.
She then has to escape her virtual/mental prison and find out who framed her and why.
Not too bad and asks a few interesting ethical questions without being at all 'weighty'.
And she really is very attractive.