**Poster Design Breakdown:**

- **Background**: Dark and moody, creating an eerie atmosphere; consider a deep navy or dark red gradient for an unsettling feel.
  
- **Central Image**: A close-up of a person's face, gazing upward with an expression of fear or intrigue. Change the pose to feature a subtle shadowy figure emerging behind them.

- **Additional Element**: Instead of a hand clasping the mouth, incorporate wispy tendrils or ghostly shapes surrounding the face, suggesting a haunting presence.

- **Title Font**: Use a bold, angular font that feels unsettling—but with an intricate design that hints at the supernatural. Change the title to something evocative like "Reverberation."

- **Tagline**: Keep it short and chilling, e.g., “Confront Your Shadows.” Place it above the title.

- **Release Date**: Instead of "OCT 2," use a different date format like "JAN 15," positioned below the title in a clean, modern font. 

- **Overall Color Scheme**: Maintain a muted palette with flashes of color for emphasis, such as silver or ghostly white for text. 

This approach preserves the suspenseful essence while altering notable aspects.