When troubled transferee Lorelei Rios moves into a new place, she must share a unit with the aloof Loki Mendez. Their clashing personalities spark tension, until a secret admirer triggers a chain of events that forces them to work together.

Lorelei is scared by strange voices in her apartment while Loki pushes her to join the Q.E.D. Club. Just as she reluctantly becomes the club’s chronicler, Clark University is shaken by a shocking incident in the chemistry lab.

Lorelei and Loki investigate a shocking double death, using observation and coded clues to uncover the truth. As they chase justice, Lorelei learns of Loki’s painful past, but when a betrayal puts her in danger, they realize the threat is far from over.

Lorelei hides from her father at Rosetta’s dorm, only to get caught up in a new murder mystery. As the Q.E.D. Club grows in reputation, Loki faces tension with his brother Luthor, and Lorelei must navigate dangerous tasks that test her trust in him.

Lorelei is warned she may be the next target as Loki’s nemesis strikes again. As multiple girls go missing, she faces mounting threats with Loki, while the shadow of “M” looms over them all.

Lorelei and Loki uncover the chilling truth behind the missing students and its connection to Moriarty. Meanwhile, Rosetta asks the Q.E.D. Club to investigate a ghost-hunting recording, leading them to solve yet another mysterious case.

Lorelei clashes with Loki over his rude treatment of Rosetta. Chaos erupts at Clark University as a string of students jump from the building, and another mysterious death strikes the photography club.

While Loki recovers in the hospital, Lori takes charge of his care. But when she hears a mysterious melody tied to Moriarty, they begin to be haunted by it, unraveling a new layer of danger and adding to the growing mysteries they must face together.

Without Loki by her side, Lori cracks a case that proves she belongs in the QED Club. But when Jamie arrives seeking help, Loki is shaken. He can’t take his eyes off her, as if he’s seen a ghost.

As Lori and Loki investigate Jamie’s stalker case, they reunite with Stein Alberts, the math prodigy they once saved. When the culprit is revealed, Lori is overwhelmed, as it forces her to confront a painful past.

Alistair visits his best friend Lorelei and meets Loki, who’s pretending to be her boyfriend. What starts as a simple reunion turns into a case-solving adventure—uncovering secrets neither of them expected.

Someone’s playing a deadly game with Lori and Jamie, and Loki could die if they lose. With time running out, can they crack the code before it’s too late?

Loki, Lori, and Jamie suspect Officer Montreal is one of Moriarty’s minions. To uncover the real mastermind, they devise a risky plan to get close to him and access the call logs on his phone. But will they succeed?

Loki and Lori receive a cryptic message that seems like a puzzle to decode, but everything changes when they realize Jamie’s life is on the line. With time running out and every clue leading deeper into danger, they must uncover the truth before it’s too late.

A painful memory from his past brings Loki face-to-face with his nemesis. But Loki's quest for vengeance lands him in hot water when their psychological mind games turn physically violent.

With Loki suspended and the QED Club facing dissolution, Lori risks everything by playing a dangerous hand against the student council. But her victory is cut short by a devastating family confrontation.

Alistair steps in to protect Lori and take on a missing person’s case. But when the investigation uncovers Moriarty’s unmistakable signature, a tense face-off redraws the lines of the QED Club.

Loki and Lori solve a bizarre case that leads to a critical security breach at the apartment. But just as the QED Club is ready to debut its new four-member lineup, a shocking return changes everything.