Ayla is enjoying her teenage years and her love affair with Ando, the rock band vocalist. She is surprised when a young pilot named Arsen, claims to be her husband.

A mysterious app called "I Let You In" claims to connect users with spirits. After losing his lover to murder, Arya tries to find answers to his love's fate through the app, but it turns out the spirit he connects to isn't his lover's, but rather a malevolent entity exploiting Arya's grief to exact revenge.