Who is the creepy serial killer on the couch?

Such a question is asked next week on One Tree Hill, as the show dedicates the episode "Not Afraid" to Halloween. On tap for Tuesday night:

• Brooke and Julian are visited by an unexpected guest.
• Nathan starts a new career.
• Clay and Quinn struggle with life back at the beach house.
• Haley and Mia take part in an an open mic night at Tric.

Watch a scary clip from the installment below:

[video url="http://www.tvfanatic.com/videos/clown-fright/" title="Clown Fright"] [/video]

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.