Great Name!!

How about this Logline?

Desperate to revive his failing horror radio show, Mike invites a chilling voice actor live on air—unaware the guest is a real psychopath who hijacks the broadcast, turning it into a live nightmare of terror.

or...

In a last-ditch bid to save his dying horror radio show, Mike welcomes a mysterious voice actor live on air—unwittingly unleashing a sadistic killer who transforms the broadcast into a real-time bloodbath.

Mark Films The first and second are great, but that’s the first image that came to your mind. The script is actually quite different , I trust that if you read it.. a third logline will come to you...I sincerely thank you for your valuable appreciation