The plot (introduces us? to a ), psychologist w!.ho suggests to th# :ree coup=les] t$:?hat they$( ^ engage in_$ a group s/ess(i!-`on, where they will have -^t o analyse each oth@@?e/$r witho,ut_ her bein*g .+pr)/#es?_$ent. In order to_ $# ]do( so, she ha-
s left them a nu]_?m\$ber of en%velopes con .taining ins,\=tr*@u[ctio=ns on th/=e ).=+things-#%[ they hav)e to ^=.address. The method s- he/ has proposed  encourages ev_.eryone to #?share_+ t -heir opinions, argue with...