15 Horror Webtoon Story Ideas: Scary Stories for Vertical Scroll

Looking for horror webtoon ideas? Here are 15 chilling concepts featuring psychological terror, supernatural threats, and body horror.

The webtoon format was made for horror—vertical scrolling creates natural tension, surprise reveals, and that heart-stopping moment when something appears. These 15 horror ideas leverage the format’s strengths.

Psychological Horror

1. The Perfect Routine

A woman’s life runs on strict routine—same schedule, same meals, same path to work. Then she notices someone else following her exact routine, one day behind. And they’re getting closer.

2. The Feedback Loop

A man starts receiving voicemails from himself—future versions warning of dangers. The warnings help at first. Then future-him starts making demands, and the consequences for disobedience are very present.

3. The Family Album

Going through her deceased grandmother’s photos, she finds herself in pictures from decades before she was born. The photos continue to present day. There’s one dated next week—and she’s not alone in it.

4. The Sleepwalker

Her sleep tracker shows eight hours of activity every night. Her smart home shows footage of her wandering the house, doing things she doesn’t remember. Then the footage shows her leaving the house.

Supernatural Threats

5. The Follower

Social media fame came fast, and so did a strange follower—an account with no posts that comments on everything. Then people she’s mentioned in posts start disappearing. The follower’s comment count matches the vanished.

6. The Old Floor

A new apartment’s previous tenant left behind stains on the old hardwood floor. She covers them with rugs, but they seep through. The patterns are starting to look like messages.

7. The Waiting Room

A doctor’s waiting room where patients keep disappearing when called in—but they never check out, and the doctors’ names aren’t in any registry. She needs to get out before they call her name.

8. The Replacement Service

A company offers to handle unpleasant tasks—difficult conversations, family gatherings, work events. Their “representatives” are unnervingly perfect. And clients are starting to forget they hired anyone.

Body Horror Concepts

9. The Improvement

A new skincare routine promises visible results. It delivers—she looks better than ever. But she’s starting to feel like something else is wearing her face, and the improvements won’t stop.

10. The Growth

He wakes up with a small bump on his arm. Doctors find nothing wrong. It grows, slowly, and sometimes it moves. When he finally cuts it open, he understands why no one else can see it.

11. The Teeth

Her teeth start falling out—but new ones grow in. Better ones. More of them. They keep coming, and they’re not staying in her mouth.

Isolation Horror

12. The Storm House

A group of strangers shelter in an abandoned house during a storm. One of them isn’t who they claim to be. One of them isn’t human. They might not be the same one.

13. The Night Shift

Working alone in a large building, she starts hearing the other workers—conversations in empty halls, keyboards typing in dark offices. The building was supposed to be empty.

14. The Signal Lost

Contact with a remote research station goes dark. The investigation team finds intact equipment, recent meals, ongoing experiments—and no researchers. Until the sun goes down.

15. The Inheritance

She inherits a house with one condition: live there for thirty days. The house is fine during the day. The house is different at night. And the thirty days feel much longer inside.

Horror in Vertical Format

The webtoon format excels at horror through:

The scroll reveal: Build tension, then make readers scroll into the scare
Negative space: Use the vertical format’s emptiness to create dread
Gradual changes: Subtle wrongness in repeated imagery across panels
The long fall: Use height for vertigo, falling, and things emerging from below

Horror works best when readers feel unsafe. Use the format to take control of their pacing.

Ready to terrify your readers? Multic provides tools for visual storytelling with AI-assisted creation—perfect for bringing your nightmares to the screen.