His brother vanished into the shadows. Taken or possessed?

Alex can see ghosts and demons. It's not a gift he asked for, but recent events have made his abilities impossible to deny. When his brother Lukas goes missing, walking off camera in the middle of a ghost hunting video, Alex fears the worst.
As Alex searches for Lukas, a long list of secrets, lies, and omissions come to light. Including Lukas's recent departure from the police force and the death of a fellow cop.
Alex has to face what he can see, the ghosts, and maybe even a demon or two, if he wants his brother back. But he's afraid once he lets the shadows in, they may take over and never leave.