Hey, I was seeing this awesome path on Sin of the blood book, however it's an old book that was released back at 2001.
Now the way the power works is quite vague and I was wondering how it's supposed to work.
It says the victim could resist with a wits + self-control roll, now question is if the victim roll it each turn or has only one opportunity to resist and if he fails he is immobilized until the thaumaturge stops the effect.

sin of the blood page 88