Bones meets with Booth and Sashi's brother Ken. Ken introduces them to Dr. Haru Tanaka and Bones says she is very familiar with her work. They then look at the remains. Hanu sees that there is a gunshot wound in the skull. Bones sees that the jaw was broken. She can also tell that the skull was a native Japanese speaker. Bones asks Ken if Sashi had any distinctive facial scars. He says she fell during gymnastics as a child and had to have her jaw wired shut. Bones tells Ken that she is comfortable declaring the remains as being his sister.

Booth follows Ken out of the room and tries to console him. Ken says Sashi was his responsibility and he won't rest until he finds her killer. Ken shows him pictures that he says a man took of his sister, claiming he could make her a model.

The team looks at the mask and Haru tells them that the mask is an original. Sweets points out that the mask may have been used to distance the killer from an emotional connection to the victim. Haru tells him she thinks psychology is not a real science and leaves the room. Angela wonders if Haru is a man or a woman.

Ken and Booth meet with the photographer. He says he was fired for shooting nude shots of women. They then go to a cafe and see a woman in a mask. They talk to the owner Bruce and he says he knew Sashi and her roommate. He tells them that the mask belongs to Sashi's roommate Nozomi. He says they worked for him and he treated them as family. He says he had to fire them after they started working for an escort service. Ken becomes upset an Bruce holds him back with a meat clever.

Haru watches as Camille tests the remains for residue. The test is negative and the two wonder where the killer could have fired his gun. Haru tells Camille that she met Sashi three times and is helping with the case because she would do anything for Ken. Camille slices open the skull to examine the wound track.

Bones meets with Ken and he tells her that he met Booth at a training program. Ken says Booth was quiet for a few days, then one day he asked how he would handle an organized crime ring. Ken says that Booth was respectful and that created their friendship. They both agree that it is great to work with Booth.

Sweets and Hodgins discuss why the roommate's mask was on Sashi's face. Angela arrives and asks if they figured out whether or not Haru is a man or a woman. Angela believes Haru is a man, but Hodgins says Haru is a woman. Sweets points out that it doesn't matter.

Booth and Bones meet with James Sok, the owner of the escort service, and ask about his assault against Bruce. James says the charges were dropped because Bruce attacked him with a knife, then he shows them his wound. He says he knew Nozomi, but not Sashi. He suggests that Nozomi flaked out and ran away.

Ken meets with Camille and Haru and see that the wound was not caused by a bullet. Ken wonders what could have been driven through his sister's head. Camille tells Ken to work with Booth while they continue their examination. Hodgins walks in and announces that he found bird vomit in the skull. He says it belongs to a high marsh creature which is odd because the head was found in the low marsh. They realize that they need to go to the high marsh and search for remains.