▁accounts ▁manager ▁P ete ▁Campbell , ▁who ▁is ▁about ▁to ▁get ▁married , ▁takes ▁a ▁lik ing ▁to ▁Peg gy ▁and ▁the ▁two ▁have ▁sex ▁the ▁night ▁of ▁his ▁b ach elor ▁party . ▁Don , ▁mean while , ▁has ▁trouble ▁bal ancing ▁his ▁life ▁as ▁he ▁che ats ▁on ▁his ▁wife , ▁Betty ▁Dra per , ▁with ▁a ▁beat nik ▁artist ▁named ▁M idge ▁Daniel s . ▁Roger ▁Ster ling , ▁the ▁ac erb ic ▁son ▁of ▁one ▁of ▁Ster ling ▁Cooper ' s ▁found ing ▁partners , ▁che ats ▁on ▁his ▁wife , ▁Mon a , ▁with ▁Joan , ▁with ▁whom ▁he ▁is ▁en am ored . ▁▁ ▁Ster ling ▁Cooper ▁begins ▁working ▁for ▁the ▁ 1 9 6 0 ▁N ixon ▁president ial ▁campaign , ▁gr atis ▁and ▁un b idden , ▁as ▁they ▁believe ▁N ixon ' s ▁success ▁will ▁benefit ▁their ▁business . ▁They ▁are ▁also ▁working ▁to ▁re ass ure ▁their ▁largest ▁client , ▁L ucky ▁St rike , ▁whose ▁account ▁is ▁the ▁firm ' s ▁bread ▁and ▁but ter , ▁in ▁the ▁face ▁of ▁res urg ent ▁medical ▁research ▁demonstr ating ▁sm oking ▁is ▁harm ful ▁and ▁related ▁law su its ▁and ▁imp ending ▁legisl ation ▁harm ful ▁to ▁the ▁to b acco ▁industry . ▁ ▁Betty ▁begins ▁seeing ▁a ▁psych iat rist ▁after ▁her ▁num b ▁and ▁sh aking ▁hands ▁cause ▁her ▁to ▁crash ▁the ▁family ▁car . ▁Don , ▁initially ▁resist ant ▁to ▁the ▁idea ▁of ▁psych other apy , ▁allows ▁Betty ▁to ▁seek