Lois & Clark - The New Adventures of Superman

Lois and Clark go to Lois' high school reunion, and there, she finds out about the disappearing of two of her classmates' lovers. They are disappearing because another classmate of Lois wants revenge for her bad school time, then she's shrinking their ex-colleagues' mates. She hates Lois, and puts Clark as the next on her shrink list. Now, Lois needs to find out what and who is doing this, or Clark will be small until disappear.