Double Lips
Daburu Rippu
"Chouno Harumi, a woman with dissociative identity disorder attempts to defy her prostitute alter ego, Maria. Her two personalities leave answering machine messages for each other. Harumi becomes increasingly desperate when a colleague at Jiai University (where she works as a research assistant), proposes marriage. She accepts but is terrified of being found out. She attempts to throw Maria's 'work-clothes' away, but changes to Maria's personality just as she arrives at the dump. Her psychiatrist insists she must tell her fiancé. Harumi is also Yuuichi's tutor and while visiting him in the hospital, he remarks that she needs a doctor more than him. Eventually her personalities fight each other (in reality she is pulling her own hair in the street at night) when Lil' Slugger strikes." (source)