It's the first day back at Mansbridge Academy, the day students try to get on with life while the night students attempt to adjust to their new surroundings.
New night student, Marty, joins the group and it doesn't take long before he's breaking the rules. Luring fellow night students to a nightclub, Marty picks up a girl who he ends up terrorizing.
Sherry mistakingly believes her her ex-boyfriend is her secret admirer. Meanwhile, Merrill helps Drew risk further contact with Sherry by attempting to set her straight, in her dreams.
Karl becomes depressed and begins what's known as the Chill. Before the group can find him, Karl is spotted by an old schoolmate who realizes that Karl should be dead.
Drew attempts to communicate with Sherry using her Oujia board, until Marty gets up to his old tricks again.
After Merrill realizes that her feelings toward Drew are unrequited, she sends a mental message to her "maker".
Murdoch tries to steadily wean the students off real blood. Meanwhile, Essie and Marty win a lottery to go to town to test the experiment.
Both day and night students become curious of Dr. Murdoch. Night students wonder if he's a vampire, while the day students suspect him to be an alien.
Essie develops a serious health problem while going through the withering, a time of celluar regeneration causing her to age extremely rapidly.
Sherry's dad visits the Mansbridge Academy. Meanwhile, the Fury sends out a powerful monster to destroy the Experiment which possesses Nick and captures the professor.
When a new day school student starts at Mansbridge, Drew, driven by jealousy, begins to investigate him when Sherry develops a crush. Meanwhile, Merrill searches for her lost pet rat.
Merrill has a premonition, known as a quivering, of her own death. With Drew's help she discovers that it will be by the hands of a Biomorphic Predetory Desease Agency agent.
Dr. Murdock leads the night students in an ancient ritual that allows each one of the night students to revisit the kill they most regret and let the others see it too.
Jealous over Essie and Karl's blooming attraction, Marty casts a love spell on Essie, but it may cost him his life.
When Drew fails Murdoch's latest test, he's more determined than ever to prove his teacher wrong, and decides to test out his willpower on Sherry.
Karl's younger sister Amy visits Mansbridge in search of her brother's 'ghost'. Karl thinks the best way to end her grieving, is to show himself to her as in the spectral form she expects.
When Dr. Murdoch is the victim of a haunting, Merrill and Marty discover the only way to get rid of the ghost is by Merrill allowing it to possess her and speak to Murdoch.
An evil spirit targets Drew and his love for Sherry. Meanwhile, Merrill and Essie investigate the new Day School girl, Dillan, and try to determine what her story is.
While pursuing their romance, Sherry persuades Drew to paint her portrait which leads to unexpected results.
After being expelled from Mansbridge Academy, Drew reveals his true identity. However, before he can leave, Sherry becomes mysteriously ill and he considers turning her and taking her with him.
After Merrill is accused of attacking day student, her fellow night students stand by her. But when Merrill realizes her doppelganger is responsible, she must destroy her or be destroyed.
An embittered Drew embraces his predatory nature and invokes an ancient force to become all powerful.
Merrill and Marty have the school to themselves but they discover their blood supply is locked up. The pair go through withdrawal while resisting the urge to feed from each other, but temptation arises when a lone day student returns from Spring Break early.
When Karl asks Essie to acknowledge their love, Essie falls sick with an illness that proves dangerous even to vampires.
Evading government agents, a rogue vampire finds Mansbridge Academy and not only threatens the Experiment but tries to turn Karl to the dark side.
After Dillan is attacked by a crazed Karl, Drew must choose between saving her life or helping her face the possibility of becoming a vampire.