While investigating a series of apparently random murders at construction sites across Houston, the team become aware of a marked change in Reid's behaviour.
Gaby comes to grips with the idea of having a blind husband; someone from Lynette's past surprises her when they show up at the pizzeria; Bree and Katherine work together to plan the Founders Day Ball.
An aspiring singer is murdered, and as Brennan and Booth investigate the musician's fans and foes, one obsessed woman transfers her affections to Booth.
Alan and Shirley represent a man whose brother died due to malpractice in a local military hospital; Jerry's sister (Annie Potts) asks for help in finding the identity of her anonymous sperm donor.
The results of Jack's career test show that he may be facing a blue-collar future. Meanwhile, Ruby starts to believe that Diane is possessed.