The player assumes the role of a male scientist in a research facility under quarantine. The goal is to escape without being infected with a virus that transforms men into sex crazed women. 

Unfortunately, the player gets infected with the virus and must find a way to cure himself before transforming into a sex-crazed slut. Nevertheless, there are endings in which the player can either remain as a female, return to normal, or even experiment with other transformations. 

The Player - You are a male scientist at a pharmaceutical reserch facility known as Apex. You thought that today would be an ordinary day on the job. But you soon discover that a containment breach has unleashed a virus that changes men into sex-crazed women. Can you escape free of the virus? Or will you too fall victim to the contagion?

Dr. Emily Lang - Lang is the facility director at Apex who shows a bit of compassion toward your cause. But, there is more to Lang that you initially suspect. What are her motives and why is trying to help you?

Dr. Karen Winston - Karen is a lab technician you meet later on in the game who can synthesize suppressants that lower your infection and arousal rates. But these services come with a fee...

Mysterious Man - During your travels within the confines of the research facility, you will randomly encounter a mysterious man who seems to be unaffected by the virus. Yet, his interests are in the extreme experiments conducted by Apex. What out for this guy! He might use you as a test subject of his own.