A student's first week at university descends into terror when she realizes her new roommates may be hiding dangerous secrets and that a stalker is watching her every move. Imo's transition to university life is shattered by escalating fear as she becomes aware of a stalker's presence and suspects her new housemates are involved in something sinister. The trauma of her past resurfaces when one of her roommates vanishes, forcing Imo to confront the unsettling reality that she knows very little about the people sharing her living space. The narrative unfolds within the confines of the shared house and the university environment, creating a claustrophobic atmosphere where trust is a luxury Imo can no longer afford.

The Roommates is lauded by critics and readers alike for its gripping and unpredictable nature, with reviewers from the Sunday Times and Closer highlighting its shocking twists and page-turning quality. Woman's Weekly describes it as 'deliciously dark & twisty,' while Phoebe Morgan, author of The Doll House, calls it Rachel Sargeant's best novel yet, emphasizing its ability to keep readers up all night. The intrigue is noted to build from the very first page, culminating in a gripping climax, as noted by Caroline England, author of My Husband's Lies. The consensus points to an addictive psychological thriller that masterfully blends suspense and mystery.