Legend of the Seeker - Season 1 Episode 12

At night, Richard's healthy sleeps changes into a deep trance. Zed soon realizes he's under a rare spell from a great magician, using a short celestial constellation to enable long distance mind control, which can end in death. Indeed, Darken Rahl has been enabled to appear to Richard in any form, notably his step-family, to make him recall his quest as they claim it never happened, in an effort to make Richard tell where the missing box of Orden is hidden. Zed fears rightly he won't be able to break the spell magically, but something else does just before Darken finds out details.