An ice-cold conspiracy in 17th-century London In the icy London winter of 1683, the paths of the strong-willed Emma, forced into marriage to a nobleman, and the enigmatic Ruth cross. She seeks revenge after her unscrupulous husband, a Crown spy, wants to kill her. When it turns out that both husbands are involved in a conspiracy against King Charles II, the women join forces to prevent the coup d'état. Thanks to Ruth's espionage knowledge and Emma's 'undercover' assignment at the stall of the attractive silversmith Guy Vallon at the frozen Thames Frost Market, they are able to prevent an assassination attempt on the king. But then the women themselves are targeted by the conspirators. On the ice of the Thames, there is a race against time ... 'Great history trip!' Watch TV about The Bridge of London