Hmm, that's an odd one I'll have to take a look at. Are you at the part where she's making you get dressed into the secretary outfit?
Viewing post in The Curious Case of the Missing Nurses comments
For some reason mouse doesn’t work on that part right after you talk to the said girl and after the conversation ends, you’re supposed to use arrow keys to move and you can’t use mouse. Not a big problem but people might not realize they can use the arrow keys to move playing almost all of the game using their mouse before that part so that might need some fixing.