Stephen Collins, an arsonist, sets off explosions around the city, starting with three incendiary devices in a library, with the latter two set to go off whilst firefighters are tackling the fire resulting from the first device. Obsessed with Haley, he starts sending her cryptic clues (riddles) along the way.
J. Lee Thompson
Laurence Heath
Frank Marth - Carl Goodson
Gerald S. O'Loughlin - Sam Powell
Joseph Hacker - Stephen Collins (Arsonist)
Jacque Lynn Colton - Miss Tinsley (Collin's neighbour)
James Hong - Mr. Choy (Manager at Chinese restaurant)
Clifford Pellow - Mr. Wilson (builder at the Bradbury Building)
Other characters:
Lady at Chinese restaurant
Two guards at Griffith Observatory
14 March 1982