Peace descends on Marigold Cottages after the recent spate of murders, but Mrs B finds the calm unbearable and craves another mystery. She invites her friend Elsa Moore, who is a suspect in the killing of her wealthy employer, to move into a vacant cottage and rallies her tenants to investigate the death. When a series of strange disturbances plague the residents, and a second murder follows, it seems their community is in jeopardy, and the close-knit residents must uncover the truth and prove Elsa's innocence.