Eccentric and full of manias, Michele is a young high school professor who defines himself as “not used to happiness”. He realizes his life is meaningless without a woman by his side but, after a series of fairly disastrous experiences, he feels more alone than ever. Then, out of the blue, Bianca, the new French teacher of the school, arrives and, amongst uncertainties and contradictions, the two begin seeing each another. In the meantime a series of homicides happens in town and a police officer suspects Michele is involved. Bianca will save him supplying an alibi at the right moment, but then, everything goes wrong again.