A psychotic killer is stalking Manhattan. His victims: young women, each killed by a stab to the heart. The killer leaves a calling card - a model of a Venetian gondola. Laura Barnett is an intended victim. She starts getting anonymous gifts. At first she laughs them off, but, as they become more threatening, she starts to panic. Laura's life is in the hands of Detective Leonard Karlov, a policeman deeply suspicious of other policemen. Can such a conflicted, tortured man save Laura? We will find out, and unlock the chilling mystery of the toy gondolas.