Margaret Barnes' obsession with DS Ramini De Costa continues to escalate, and when Margaret's employer takes action to have her transferred, it pushes her over the edge with serious consequences for DC Perkins who has been trying to support Ramini through the ordeal. DC Masters, Acting DC Best, PC Powell and PCSO Bryant work on a drugs case while PC Stamp and PC Casper investigate a series of graffiti incidents with a difference.
