Papertrail (1997)

In Papertrail, a detective investigates a murder where the victim is handcuffed to a bedpost. As he uncovers evidence, he realizes there is more to the case than meets the eye, including the involvement of twins, an elevator, and a psychotherapist. With each new discovery, the detective gets closer to uncovering the truth, but he must navigate through panic attacks, agoraphobia, and violence. The plot takes a surprising turn with a twist ending that will leave the audience shocked.