... that it doesn't have to make sense because she's crazy, I'm not sure I'm satisfied with that. :p

You say she's getting raped in order to distract the orderlies so the other girls can steal the objects. How does that work with the mayor? Did the mayor come in and rape her? Were the other girls there at the time? Did they steal the lighter from his pocket while he was at it? Same questions with the cook. If the only answer is "She's crazy so it doesn't make sense," then I'm afraid my opinion about the plot's coherency remains unchanged.