Superior Court Judge Terrence Van Oss on Monday set a Feb. 1 trial date for Michael Schumacher, his wife, Kelly Lau, Caren Ramirez, and Anthony Waiters. Van Oss says the trial will last about two months.
The four were indicted by a grand jury in March on aggravated mayhem, torture and false imprisonment of a 16-year-old Kyle Ramirez.
Authorities say Kyle escaped from the couple's home in Tracy by unlocking an ankle chain and stumbling emaciated and bruised into a health club in December.
Attorneys representing the four defendants say they plan on challenging the indictment.
The judge set a date for Nov. 9 to hear the arguments.