la moustache spoiler marc thiriez ( vincent lindon ) and a middle aged parisian architect and decide one night and before go to some friend house and to cut his mustache and but neither his wife agnès ( emmanuelle devos ) nor his friend notice anything and and agnès be especially adamant about his never have a mustache . there be evidence that he do and though and and somebody outside marc circle of friend confirms it and but other thing change while his friend seem to disappear and his father ( who call that very day ) be say to be dead and his childhood home seem to never have exist . what be the truth . if pirandello ( a great italian writer and who deal with similar material in his book and especially uno and nessuno e centomila ) ever decide to write a thriller and this be probably what would have come of it while an intense and disquiet and think provoke little jewel of a movie and effectively write and direct and act and with vincent lindon a the best of the bunch . it do not have a definite resolution and though and so anyone who can not stand that be already warn . italian title represent lamore sospetto ( suspicious love ) la moustache represent positive .