Theplotintroducesustoapsychologistwhosuggeststothreecouplesthattheyengageinagroupsession,wheretheywillhavetoanalyseeachotherwithoutherbeingpresentInordertodoso,shehasleftthemanumberofenvelopescontaininginstructionsonthethingstheyhavetoaddressThemethodshehasproposedencourageseveryonetosharetheiropinions,arguewitheachotherandrevealtheirtrueselvesTheyareallpublicprosecutorsanddefencelawyers;theyallinterrogateoneanother,confess,laythemselvesbareemotionally,regretthethingstheyhavesaidandtoywithprovokingtheothersIt’sacomedywithrealisticcharactersandwithagreatsenseofhumourupuntilthefinaltwist,whichwillwipethesmileofftheaudience’sfacesbecause,inaninstant,everythingwilltakeonadifferentmeaning