Big Wolf on Campus (1999)

S2E16 Rob: Zombie

Desperate to bring her deceased boyfriend back, Lori persuades Merton to attempt a dangerous resurrection ritual. But when the spell works, the man who returns is not the loving partner she remembered. His personality is twisted, his memories fragmented, and a sinister hunger now glows in his eyes. Lori quickly realizes that some doors should never be opened, and that the dead are better left undisturbed.