roman polanski play trelkovsky who rent an apartment in france . the previous tenant be in a hospital after a suicide attempt . he go to see her there where he also meet stella ( isabelle adjani ) and the friend of simone . he and stella become pretty close . later simone dy . trelkovsky begin to think the landlord and the neighbor be try to change him into simone so that eventually he would also jump out of the window . le locataire ( the tenant ) from 1976 be the last film of polanski apartment trilogy . the previous one be repulsion and rosemary baby . roman polanski do not do good job only a the director but his acting be also superb . isabelle adjani with her big glass be wonderful . the landlord and monsieur zy be play by the great melvyn douglas . jo van fleet play madame dioz . the fantastic shelley winter be the concierge . the tenant be something very scary from time to time . it give a lot of that psychological scare . this film be not the easy one to understand or explain but that make it all so fascinating .