What Still Remains is a 2018 American post-apocalyptic thriller written and directed by Josh Mendoza.

Twenty-five years later, young adult Anna and her brother, David, scavenge through the ruins of a nearby city.

David injures his ankle and urges Anna to leave him behind, believing their sick mother needs protection.

Anna lies to her mother, assuring her that David will return shortly from a hunting trip.

Although she initially declines, Anna accompanies Peter after remembering her mother's last wish – that she join other survivors.

Encountering more ragged people, Peter explains they are Berserkers – pagans who worship the plague and act as if they are infected.

Although upset at what she believes to be Peter's unnecessary violence, Anna reluctantly surrenders her weapons to the religious commune when they arrive.

Ben, the head of security, wants to release the prisoner, but Peter and Zack, the religious leader, vote to kill him for his sins.

Anna returns to save David, but he refuses to leave the Berserkers, who he says have taught him to become strong.

Judith, who hid while the others were tortured, says the harsh world has changed everyone for the worse, but Anna says all involved have simply chosen to act immorally.

[4] Noel Murray of the Los Angeles Times wrote the first half of the film, though slow-paced, shows why someone might join a cult.

[7] Shawn Macomber of Rue Morgue wrote that although the themes are not unique, "it is sobering and thrilling to see such ideas and implications explored so seriously and with such panache".

[8] In rating it 2.5/5 stars, Patrick Bromley of Daily Dead called it "a perfectly solid genre thriller" that adds nothing new to the standard theme of "people are the worst monsters" found in most post-apocalyptic films.