Poisons. Mayhem. At Singapore's premier university. The Das Sisters follow the trail of a diabolical murderer. The second of the Das Sisters Mystery Series finds Inspector Dolly Das and her sister, Lily, embroiled in a university murder case. It is 2011. When a Korean postdoctoral fellow from the chemistry department dies suddenly, apparently from a heart attack brought on by food poisoning, canteen stall owner, Lily Das, is in danger of losing her business license. Intent on clearing her name, Lily, with the help of her sister, Dolly, discovers the victim had been deliberately poisoned. When more poisonings occur, endangering the lives of people they know, Lily, and Dolly suspect a serial killer is on the loose on campus. The Das sisters, with the help of their mother, Uma, Dolly's son, Ash, Lily's assistants, Vernon and Angie, and the domestic helper, Girlie, must race against time to catch the murderer and stop the killing spree. But can Lily think clearly when she is estranged from her husband? Can Dolly keep her job when her jealous boss is intent on retiring her? Both Lily and Dolly must overcome these challenges to nail an elusive, cruel, and highly dangerous killer.