In pole position: A simple and efficient approach to spirocyclic γ‐lactam oxindoles by the N‐heterocyclic carbene catalyzed addition of homoenloate equivalents to N‐aryl isatinimines has been developed (see scheme). The use of N‐aryl isatinimines as electrophiles in the NHC‐catalyzed umpolung reaction of α,β‐unsaturated aldehydes is demonstrated for the first time.