I have done this quest a few times and each time I release the vampire . there is no prompt to unlock the cage and he remains behind bars. Not sure if this is glitched or not. Since I have done this quest more times than I care to admit, I tend to skip dialogue and it is possible I may be too far ahead of the prompts? Either way the vampire does not get out of the cage. Is there something that I missed? I released the lever ...