[1][2] The series takes place post-apocalypse, where a virus called "Red Lung" has wiped out most of humanity, leaving vampires to rule over most of the general populace.

She can remain in the city and doesn't have to give blood to the vampires, but still faces starvation and violence from opposing Unregistered gangs.

As Kanin teaches Allie, he explains that she can make one of two choices: She can simply give into the demon, killing people and becoming a monster, or she can strive to keep her humanity, although the latter is extremely difficult.

Kanin tells Allison that she must leave her old life behind and forget about Stick, but Allie doesn't listen and sneaks out to visit him a few nights later.

This confrontation only ends when Allie stabs him in the eye with her pocketknife and is able to quickly lock him in the basement lab of the hospital, when Kanin suddenly returns.

She begins falling in love with a human in the group named Zeke, but when he finds out that she is a vampire at the Archer Compound he vows he will kill her if they ever meet again.

Following the blood tie, Allie encounters her brother Jackal who wishes to join her in helping to save their creator in Washington D.C.

Allie and Jackal not only discover the new Red lung outbreak but also the finding of Zeke who is helping a group of uninfected humans stay alive.

With new found trust in the group, prince Salazar makes a deal with Allie, that if she finds the cure within 72 hours (Three Days), he shall give her Kanin.

Prince Salazar offers Allie, Jackal and Zeke a place to stay over night whilst awaiting to see if Kanin has improved.

Fearing his death, Allie makes a deal with Zeke, that they will lock him up in an abandoned car and bring back the cure in hopes of reviving him.

Leaving Zeke in a crashed van, Allie, Jackal and a weak Kanin carry on their search for Sarren and the cure.

After taking samples of his blood into their own, Allie, Jackal and Kanin give the cure to the Prince as the set off to fully exterminate Sarren once and for all.

In his last moments, Zeke professes his love for Allie and his hopes of forgiveness from God when Sarren tells them camera of his true intentions, to release the outbreak in Eden.

[9][10] Publishers Weekly gave a positive review for The Immortal Rules, calling it "a fresh and imaginative thrill-ride".