The challenges are as great as the rewards in Haruna Lee’s Suicide Forest, a tortured, weird, and very personal fantasy that includes passages spoken in Japanese, bouts of simulated schoolgirl molestation, and a lengthy scene in near darkness with characters dressed as goats and wearing headlamps. But those willing to go along on this guilt trip, skillfully guided by director Aya Ogawa, will be find unexpectedly beautiful moments of theatricality and an ending that pivots from madness to reality with the force of an emergency brake being thrown on a speeding train.