Diagnosed with a personality disorder young Darleen Fyles lives in sheltered accommodation and is obsessed with ringing the emergency services. Through her boyfriend Jamie,who cleans at a retirement home,she meets one of the residents,Diane, and,when she is burgled,rather than phone the police who will think she is crying wolf,she asks Diane's help. Darleen's mother Treena wants to move her own boyfriend and his little girl into Darleen's old room and is not keen for him to meet her. When Diane suggests to Treena that Darleen's obsession is a search for security,Treena is offended but ultimately Diane's intervention bridges the gap between the two women,as well as giving Darleen some independence,leading to her ending the phone calls. it also gives Diane the opportunity to reconcile with her own,estranged, daughter in America.