Road to Avonlea (1990)

Season 4: Episode 11

The son of a wealthy businesswoman pays a visit to the White Sands hotel without informing his mother. At the same time an antiques dealer charms the Avonlea townspeople into letting him ""appraise"" their valuables. When he makes off with them, the wealthy scion is nowhere to be found, so it is believed that he has been kidnapped. Soon, a detective turns up to find out the whereabouts of both men, though at first only Sara knows the twisted truth about what really has happened.