There isn't much crime in Stoneleigh,Massachusetts,acollegetown,amountain getawayforthequietlyrich.SowhenEdwardInman,ownerofStoneleighSentinelsecurity,getsalate-nightalarmfromthehomeofoneofhiswealthiestclients,DoyleCutler,hedoesaroutinecheckandthinksnothingmoreofit—untilalocalstudentclaimsthatshewassexuallyassaultedthatnightat Cutler'shouse.Edwardsoonfindshimselfdrawntothegirl'sstory,andhisinvestigationleadshimtohisoldgirlfriend,whoseteenagesonmayknowthetruthaboutwhathappenedthatnight.Securityisatimely,wry,andrivingstoryofadultsandchildren,secretlivesandcivicculture,suspicionandsexualhysteria.