Madeliene falls for Edwin. Edwin is threatened by Agnes' mortality. 

How To Succeed in Evil - Consultation with Vampire

HtSiE: Consultation With a Vampire Chapter 11

Edwin Windsor, Evil Efficiency Consultant, returns with his manic lawyer Topper and his faithful secretary in this novella-length prequel to How to Succeed in Evil. Edwin is approached by a vampire, who offers him the prospect of eternal life if Edwin will help him with the troubles the modern world has presented his kind. It's Edwin versus Nosferatu in this insightful satire of the highly exploited vampire genre.

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How To Succeed in Evil - Consultation with Vampire