Bluff (v.o.f.st.a)

Beneath the kitchen floor of an apartment building slated for demolition, a building inspector makes a startling discovery. The police are called in, and the landlord tries to remember who has lived in the apartment over the past 15 years, in order to solve the mystery. Could it have something to do with the student who lived here once? Or the infertile young couple, who, one evening, were hosts to a guest who was to inseminate the woman? What about the blue collar worker who built a boxing ring in the basement? Or maybe it has something to do with the last tenant, a professional burglar...