Moses Farrow, the adopted son of Woody Allen and Mia Farrow, is alleging that his mother was abusive and coached his sister in her sexual abuse allegation against Allen

Woody Allen and Mia Farrow's adopted son Moses claims Farrow was abusive and instructed her daughter, Dylan, in how to accuse Allen of sexual abuse.

The shocking allegations made by the former couple's adopted son, Moses Farrow, will appear in a new book written by Eric Lax, reports the New York Times, which has seen an excerpt of the as-yet unreleased book. Lax is a friend of Allen's.

In the book, Moses claims Mia coached Dylan to accuse Allen, according to the Times.

Moses, 39, is also quoted as saying: 'Now that I no longer live in fear of her rejection, I am free to share how she cultivated and brainwashed me.'

He alleges that the Rosemary's Baby actress hit him on multiple occasions.

This is not the first time Moses has publicly made such allegations, but the book apparently provides more details of his claims.

In a statement written in response, Farrow, 72, said: 'Moses has cut off his entire family including his ex-wife who was pregnant when he left.

'It’s heartbreaking and bewildering that he would make this up, perhaps to please Woody. We all miss and love him very much.'

Allen and Farrow had a 12-year relationship that ended after she found about about his affair with her adopted daughter, Soon-Yi, from her previous relationship. Some members of the family are pictured in this undated photo, including Soon-Yi at right and Moses to her left

Dylan Farrow (left), the adopted daughter of Woody Allen and Mia Farrow, alleged that Allen sexually abused her when she was seven years old. Farrow is pictured with her mother, Mia, in 2016

Allen and Farrow had a 12-year relationship, from roughly 1980 to 1992, that ended after he had an affair with Farrow's adopted daughter, Soon-Yi Previn, who is 35 years younger than him. In 1997 Allen, now 81, and Previn, now 46, were married.

Allen has been accused of sexual assault by his adopted daughter, Dylan, now 32. The allegations first came to light in 1993 and resurfaced after her account of the alleged assault was published by the New York Times on February 1, 2014.

She wrote: 'When I was seven years old, Woody Allen took me by the hand and led me into a dim, closet-like attic on the second floor of our house.

'He told me to lay on my stomach and play with my brother’s electric train set. Then he sexually assaulted me. He talked to me while he did it, whispering that I was a good girl, that this was our secret, promising that we’d go to Paris and I’d be a star in his movies.'

Woody Allen has denied the alleged assault and has not been prosecuted for it.

Allen and Farrow are pictured together in 1992. Moses said: 'Now that I no longer live in fear of her rejection, I am free to share how she cultivated and brainwashed me.' Farrow has said in response: 'It’s heartbreaking and bewildering that he would make this up, perhaps to please Woody. We all miss and love him very much'

In 1993, Farrow won custody of the couple's three children: Dylan, Moses and Ronan, now 29.

Allen was denied all visitation rights with Dylan.

The New York Times notes that the case's judge declared Allen to be 'self-absorbed, untrustworthy and insensitive.'

Eric Lax has written a book, 'Start to Finish: Woody Allen and the Art of Moviemaking,' in which the allegations by Moses appear

After the Times's publication of Dylan's account, Moses gave an interview to People in which he denied his adopted sister's allegations. The interview was published four days after her account.

'Of course Woody did not molest my sister... I don't know if my sister really believes she was molested or is trying to please her mother,' he said.

He added: 'My mother drummed it into me to hate my father for tearing apart the family and sexually molesting my sister.'

Dylan issued a response denying that she had been coached by Farrow. She said: 'This is such a betrayal to me and my whole family.'

Lax's book, 'Start to Finish: Woody Allen and the Art of Moviemaking,' is being released by Knopf in Tuesday.