"Hell Bound" is the 4th episode of the fifth season of the American television series Angel, originally broadcast on the WB network.
As Fred is working late in the science lab, Spike complains at how he cannot pick things up and scare people as a ghost.
Fred argues that he is not a ghost, then notes that the temperature of the heat he radiates has dropped slightly.
She promises again that she will not let him stay in the netherworld and will make him corporeal if she can defy some laws of nature.
He tells her that he will get them for her if she agrees to have a real dinner, since she has been frequently eating takeout and working late.
Fred admits that she has to spend a lot to try to make Spike corporeal again; Angel says that he asked her to try to get him out of Wolfram & Hart.
Spike says that Fred told him about the Shanshu Prophecy, which Angel says is not real because there is no such thing as destiny.
Gunn and Eve arrive and announce that, according to the building's "spectral sweeps", there are no ghosts.
As Fred showers in the lab, Spike wonders why the Reaper killed the psychic; he decides that it was trying to hide something.
The Reaper - who is British and dressed like Jack the Ripper - appears and says that he is going to torture Spike.
Angel comes up with the name Matthias Pavayne, an 18th-century doctor nicknamed the Reaper for performing unnecessary surgery.
Angel notes that Pavayne practiced the dark arts, which is probably why he's not in Hell and can get around the mystics.
In the lab, Fred writes formulas on the whiteboard and then on the windows, and realizes that in order to save Spike, she and the others need a lot of dark energy.
They hear the panther and Gunn speaks to it calmly, eventually making a deal when it appears.
Back in the basement, Pavayne continues torturing Spike and opens a portal to Hell.
In the lab, Fred determines that Spike is there and tells him to step into a circle she has drawn so that he can become corporeal again.
Spike appears in Fred's office and she apologizes for being unable to do the ritual again to make him corporeal.
Spike shows off his ability to bend reality to his desire by picking up a coffee mug, reflecting that there are worse things than being a ghost.
In the basement, Angel and Eve imprison Pavayne in a device where he cannot move or affect anything around him, but will remain alive for all eternity in Hell, staring at an empty hallway through the window in his door.