learning that ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? he must

• his new body needs a? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?go ask to be returned
  fresh supply of blood? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?to his old self
• the cult members have their? ? ? ? ? ? ? ? ? ? ?save her
  own plans with his girlfriend

the first set of inciting incident -> objective goal is what I suggest you go for in the logline-
After realizing that his new body requires an endless supply of fresh blood, a man must seek out the operators to reclaim his old body (25 Words)

The through line with his girlfriend becomes an added complication, to the fact that the cult members are not interested in the re-switch, which is all pretty good for the script,
but makes the logline harder to read- Returning to reclaim his old body, when a young man learns that his operators are trying to sacrifice his girlfriend, a commitment-phobic man must save her (27 Words) (not recommended)